restructure

5 files changed, 8479 insertions, 0 deletions

diff --git a/lib/vendor/URI.js b/lib/vendor/URI.js
new file mode 100644
index 000000000..c041b4304
--- /dev/null
+++ b/lib/vendor/URI.js
@@ -0,0 +1,2162 @@
+/*!
+ * URI.js - Mutating URLs
+ *
+ * Version: 1.17.0
+ *
+ * Author: Rodney Rehm
+ * Web: http://medialize.github.io/URI.js/
+ *
+ * Licensed under
+ *   MIT License http://www.opensource.org/licenses/mit-license
+ *   GPL v3 http://opensource.org/licenses/GPL-3.0
+ *
+ */
+(function (root, factory) {
+  'use strict';
+  // https://github.com/umdjs/umd/blob/master/returnExports.js
+  if (typeof exports === 'object') {
+    // Node
+    module.exports = factory(require('./punycode'), require('./IPv6'), require('./SecondLevelDomains'));
+  } else if (typeof define === 'function' && define.amd) {
+    // AMD. Register as an anonymous module.
+    define(['./punycode', './IPv6', './SecondLevelDomains'], factory);
+  } else {
+    // Browser globals (root is window)
+    root.URI = factory(root.punycode, root.IPv6, root.SecondLevelDomains, root);
+  }
+}(this, function (punycode, IPv6, SLD, root) {
+  'use strict';
+  /*global location, escape, unescape */
+  // FIXME: v2.0.0 renamce non-camelCase properties to uppercase
+  /*jshint camelcase: false */
+
+  // save current URI variable, if any
+  var _URI = root && root.URI;
+
+  function URI(url, base) {
+    var _urlSupplied = arguments.length >= 1;
+    var _baseSupplied = arguments.length >= 2;
+
+    // Allow instantiation without the 'new' keyword
+    if (!(this instanceof URI)) {
+      if (_urlSupplied) {
+        if (_baseSupplied) {
+          return new URI(url, base);
+        }
+
+        return new URI(url);
+      }
+
+      return new URI();
+    }
+
+    if (url === undefined) {
+      if (_urlSupplied) {
+        throw new TypeError('undefined is not a valid argument for URI');
+      }
+
+      if (typeof location !== 'undefined') {
+        url = location.href + '';
+      } else {
+        url = '';
+      }
+    }
+
+    this.href(url);
+
+    // resolve to base according to http://dvcs.w3.org/hg/url/raw-file/tip/Overview.html#constructor
+    if (base !== undefined) {
+      return this.absoluteTo(base);
+    }
+
+    return this;
+  }
+
+  URI.version = '1.17.0';
+
+  var p = URI.prototype;
+  var hasOwn = Object.prototype.hasOwnProperty;
+
+  function escapeRegEx(string) {
+    // https://github.com/medialize/URI.js/commit/85ac21783c11f8ccab06106dba9735a31a86924d#commitcomment-821963
+    return string.replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
+  }
+
+  function getType(value) {
+    // IE8 doesn't return [Object Undefined] but [Object Object] for undefined value
+    if (value === undefined) {
+      return 'Undefined';
+    }
+
+    return String(Object.prototype.toString.call(value)).slice(8, -1);
+  }
+
+  function isArray(obj) {
+    return getType(obj) === 'Array';
+  }
+
+  function filterArrayValues(data, value) {
+    var lookup = {};
+    var i, length;
+
+    if (getType(value) === 'RegExp') {
+      lookup = null;
+    } else if (isArray(value)) {
+      for (i = 0, length = value.length; i < length; i++) {
+        lookup[value[i]] = true;
+      }
+    } else {
+      lookup[value] = true;
+    }
+
+    for (i = 0, length = data.length; i < length; i++) {
+      /*jshint laxbreak: true */
+      var _match = lookup && lookup[data[i]] !== undefined
+        || !lookup && value.test(data[i]);
+      /*jshint laxbreak: false */
+      if (_match) {
+        data.splice(i, 1);
+        length--;
+        i--;
+      }
+    }
+
+    return data;
+  }
+
+  function arrayContains(list, value) {
+    var i, length;
+
+    // value may be string, number, array, regexp
+    if (isArray(value)) {
+      // Note: this can be optimized to O(n) (instead of current O(m * n))
+      for (i = 0, length = value.length; i < length; i++) {
+        if (!arrayContains(list, value[i])) {
+          return false;
+        }
+      }
+
+      return true;
+    }
+
+    var _type = getType(value);
+    for (i = 0, length = list.length; i < length; i++) {
+      if (_type === 'RegExp') {
+        if (typeof list[i] === 'string' && list[i].match(value)) {
+          return true;
+        }
+      } else if (list[i] === value) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  function arraysEqual(one, two) {
+    if (!isArray(one) || !isArray(two)) {
+      return false;
+    }
+
+    // arrays can't be equal if they have different amount of content
+    if (one.length !== two.length) {
+      return false;
+    }
+
+    one.sort();
+    two.sort();
+
+    for (var i = 0, l = one.length; i < l; i++) {
+      if (one[i] !== two[i]) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  function trimSlashes(text) {
+    var trim_expression = /^\/+|\/+$/g;
+    return text.replace(trim_expression, '');
+  }
+
+  URI._parts = function() {
+    return {
+      protocol: null,
+      username: null,
+      password: null,
+      hostname: null,
+      urn: null,
+      port: null,
+      path: null,
+      query: null,
+      fragment: null,
+      // state
+      duplicateQueryParameters: URI.duplicateQueryParameters,
+      escapeQuerySpace: URI.escapeQuerySpace
+    };
+  };
+  // state: allow duplicate query parameters (a=1&a=1)
+  URI.duplicateQueryParameters = false;
+  // state: replaces + with %20 (space in query strings)
+  URI.escapeQuerySpace = true;
+  // static properties
+  URI.protocol_expression = /^[a-z][a-z0-9.+-]*$/i;
+  URI.idn_expression = /[^a-z0-9\.-]/i;
+  URI.punycode_expression = /(xn--)/i;
+  // well, 333.444.555.666 matches, but it sure ain't no IPv4 - do we care?
+  URI.ip4_expression = /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/;
+  // credits to Rich Brown
+  // source: http://forums.intermapper.com/viewtopic.php?p=1096#1096
+  // specification: http://www.ietf.org/rfc/rfc4291.txt
+  URI.ip6_expression = /^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*$/;
+  // expression used is "gruber revised" (@gruber v2) determined to be the
+  // best solution in a regex-golf we did a couple of ages ago at
+  // * http://mathiasbynens.be/demo/url-regex
+  // * http://rodneyrehm.de/t/url-regex.html
+  URI.find_uri_expression = /\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/ig;
+  URI.findUri = {
+    // valid "scheme://" or "www."
+    start: /\b(?:([a-z][a-z0-9.+-]*:\/\/)|www\.)/gi,
+    // everything up to the next whitespace
+    end: /[\s\r\n]|$/,
+    // trim trailing punctuation captured by end RegExp
+    trim: /[`!()\[\]{};:'".,<>?«»“”„‘’]+$/
+  };
+  // http://www.iana.org/assignments/uri-schemes.html
+  // http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers#Well-known_ports
+  URI.defaultPorts = {
+    http: '80',
+    https: '443',
+    ftp: '21',
+    gopher: '70',
+    ws: '80',
+    wss: '443'
+  };
+  // allowed hostname characters according to RFC 3986
+  // ALPHA DIGIT "-" "." "_" "~" "!" "$" "&" "'" "(" ")" "*" "+" "," ";" "=" %encoded
+  // I've never seen a (non-IDN) hostname other than: ALPHA DIGIT . -
+  URI.invalid_hostname_characters = /[^a-zA-Z0-9\.-]/;
+  // map DOM Elements to their URI attribute
+  URI.domAttributes = {
+    'a': 'href',
+    'blockquote': 'cite',
+    'link': 'href',
+    'base': 'href',
+    'script': 'src',
+    'form': 'action',
+    'img': 'src',
+    'area': 'href',
+    'iframe': 'src',
+    'embed': 'src',
+    'source': 'src',
+    'track': 'src',
+    'input': 'src', // but only if type="image"
+    'audio': 'src',
+    'video': 'src'
+  };
+  URI.getDomAttribute = function(node) {
+    if (!node || !node.nodeName) {
+      return undefined;
+    }
+
+    var nodeName = node.nodeName.toLowerCase();
+    // <input> should only expose src for type="image"
+    if (nodeName === 'input' && node.type !== 'image') {
+      return undefined;
+    }
+
+    return URI.domAttributes[nodeName];
+  };
+
+  function escapeForDumbFirefox36(value) {
+    // https://github.com/medialize/URI.js/issues/91
+    return escape(value);
+  }
+
+  // encoding / decoding according to RFC3986
+  function strictEncodeURIComponent(string) {
+    // see https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/encodeURIComponent
+    return encodeURIComponent(string)
+      .replace(/[!'()*]/g, escapeForDumbFirefox36)
+      .replace(/\*/g, '%2A');
+  }
+  URI.encode = strictEncodeURIComponent;
+  URI.decode = decodeURIComponent;
+  URI.iso8859 = function() {
+    URI.encode = escape;
+    URI.decode = unescape;
+  };
+  URI.unicode = function() {
+    URI.encode = strictEncodeURIComponent;
+    URI.decode = decodeURIComponent;
+  };
+  URI.characters = {
+    pathname: {
+      encode: {
+        // RFC3986 2.1: For consistency, URI producers and normalizers should
+        // use uppercase hexadecimal digits for all percent-encodings.
+        expression: /%(24|26|2B|2C|3B|3D|3A|40)/ig,
+        map: {
+          // -._~!'()*
+          '%24': '$',
+          '%26': '&',
+          '%2B': '+',
+          '%2C': ',',
+          '%3B': ';',
+          '%3D': '=',
+          '%3A': ':',
+          '%40': '@'
+        }
+      },
+      decode: {
+        expression: /[\/\?#]/g,
+        map: {
+          '/': '%2F',
+          '?': '%3F',
+          '#': '%23'
+        }
+      }
+    },
+    reserved: {
+      encode: {
+        // RFC3986 2.1: For consistency, URI producers and normalizers should
+        // use uppercase hexadecimal digits for all percent-encodings.
+        expression: /%(21|23|24|26|27|28|29|2A|2B|2C|2F|3A|3B|3D|3F|40|5B|5D)/ig,
+        map: {
+          // gen-delims
+          '%3A': ':',
+          '%2F': '/',
+          '%3F': '?',
+          '%23': '#',
+          '%5B': '[',
+          '%5D': ']',
+          '%40': '@',
+          // sub-delims
+          '%21': '!',
+          '%24': '$',
+          '%26': '&',
+          '%27': '\'',
+          '%28': '(',
+          '%29': ')',
+          '%2A': '*',
+          '%2B': '+',
+          '%2C': ',',
+          '%3B': ';',
+          '%3D': '='
+        }
+      }
+    },
+    urnpath: {
+      // The characters under `encode` are the characters called out by RFC 2141 as being acceptable
+      // for usage in a URN. RFC2141 also calls out "-", ".", and "_" as acceptable characters, but
+      // these aren't encoded by encodeURIComponent, so we don't have to call them out here. Also
+      // note that the colon character is not featured in the encoding map; this is because URI.js
+      // gives the colons in URNs semantic meaning as the delimiters of path segements, and so it
+      // should not appear unencoded in a segment itself.
+      // See also the note above about RFC3986 and capitalalized hex digits.
+      encode: {
+        expression: /%(21|24|27|28|29|2A|2B|2C|3B|3D|40)/ig,
+        map: {
+          '%21': '!',
+          '%24': '$',
+          '%27': '\'',
+          '%28': '(',
+          '%29': ')',
+          '%2A': '*',
+          '%2B': '+',
+          '%2C': ',',
+          '%3B': ';',
+          '%3D': '=',
+          '%40': '@'
+        }
+      },
+      // These characters are the characters called out by RFC2141 as "reserved" characters that
+      // should never appear in a URN, plus the colon character (see note above).
+      decode: {
+        expression: /[\/\?#:]/g,
+        map: {
+          '/': '%2F',
+          '?': '%3F',
+          '#': '%23',
+          ':': '%3A'
+        }
+      }
+    }
+  };
+  URI.encodeQuery = function(string, escapeQuerySpace) {
+    var escaped = URI.encode(string + '');
+    if (escapeQuerySpace === undefined) {
+      escapeQuerySpace = URI.escapeQuerySpace;
+    }
+
+    return escapeQuerySpace ? escaped.replace(/%20/g, '+') : escaped;
+  };
+  URI.decodeQuery = function(string, escapeQuerySpace) {
+    string += '';
+    if (escapeQuerySpace === undefined) {
+      escapeQuerySpace = URI.escapeQuerySpace;
+    }
+
+    try {
+      return URI.decode(escapeQuerySpace ? string.replace(/\+/g, '%20') : string);
+    } catch(e) {
+      // we're not going to mess with weird encodings,
+      // give up and return the undecoded original string
+      // see https://github.com/medialize/URI.js/issues/87
+      // see https://github.com/medialize/URI.js/issues/92
+      return string;
+    }
+  };
+  // generate encode/decode path functions
+  var _parts = {'encode':'encode', 'decode':'decode'};
+  var _part;
+  var generateAccessor = function(_group, _part) {
+    return function(string) {
+      try {
+        return URI[_part](string + '').replace(URI.characters[_group][_part].expression, function(c) {
+          return URI.characters[_group][_part].map[c];
+        });
+      } catch (e) {
+        // we're not going to mess with weird encodings,
+        // give up and return the undecoded original string
+        // see https://github.com/medialize/URI.js/issues/87
+        // see https://github.com/medialize/URI.js/issues/92
+        return string;
+      }
+    };
+  };
+
+  for (_part in _parts) {
+    URI[_part + 'PathSegment'] = generateAccessor('pathname', _parts[_part]);
+    URI[_part + 'UrnPathSegment'] = generateAccessor('urnpath', _parts[_part]);
+  }
+
+  var generateSegmentedPathFunction = function(_sep, _codingFuncName, _innerCodingFuncName) {
+    return function(string) {
+      // Why pass in names of functions, rather than the function objects themselves? The
+      // definitions of some functions (but in particular, URI.decode) will occasionally change due
+      // to URI.js having ISO8859 and Unicode modes. Passing in the name and getting it will ensure
+      // that the functions we use here are "fresh".
+      var actualCodingFunc;
+      if (!_innerCodingFuncName) {
+        actualCodingFunc = URI[_codingFuncName];
+      } else {
+        actualCodingFunc = function(string) {
+          return URI[_codingFuncName](URI[_innerCodingFuncName](string));
+        };
+      }
+
+      var segments = (string + '').split(_sep);
+
+      for (var i = 0, length = segments.length; i < length; i++) {
+        segments[i] = actualCodingFunc(segments[i]);
+      }
+
+      return segments.join(_sep);
+    };
+  };
+
+  // This takes place outside the above loop because we don't want, e.g., encodeUrnPath functions.
+  URI.decodePath = generateSegmentedPathFunction('/', 'decodePathSegment');
+  URI.decodeUrnPath = generateSegmentedPathFunction(':', 'decodeUrnPathSegment');
+  URI.recodePath = generateSegmentedPathFunction('/', 'encodePathSegment', 'decode');
+  URI.recodeUrnPath = generateSegmentedPathFunction(':', 'encodeUrnPathSegment', 'decode');
+
+  URI.encodeReserved = generateAccessor('reserved', 'encode');
+
+  URI.parse = function(string, parts) {
+    var pos;
+    if (!parts) {
+      parts = {};
+    }
+    // [protocol"://"[username[":"password]"@"]hostname[":"port]"/"?][path]["?"querystring]["#"fragment]
+
+    // extract fragment
+    pos = string.indexOf('#');
+    if (pos > -1) {
+      // escaping?
+      parts.fragment = string.substring(pos + 1) || null;
+      string = string.substring(0, pos);
+    }
+
+    // extract query
+    pos = string.indexOf('?');
+    if (pos > -1) {
+      // escaping?
+      parts.query = string.substring(pos + 1) || null;
+      string = string.substring(0, pos);
+    }
+
+    // extract protocol
+    if (string.substring(0, 2) === '//') {
+      // relative-scheme
+      parts.protocol = null;
+      string = string.substring(2);
+      // extract "user:pass@host:port"
+      string = URI.parseAuthority(string, parts);
+    } else {
+      pos = string.indexOf(':');
+      if (pos > -1) {
+        parts.protocol = string.substring(0, pos) || null;
+        if (parts.protocol && !parts.protocol.match(URI.protocol_expression)) {
+          // : may be within the path
+          parts.protocol = undefined;
+        } else if (string.substring(pos + 1, pos + 3) === '//') {
+          string = string.substring(pos + 3);
+
+          // extract "user:pass@host:port"
+          string = URI.parseAuthority(string, parts);
+        } else {
+          string = string.substring(pos + 1);
+          parts.urn = true;
+        }
+      }
+    }
+
+    // what's left must be the path
+    parts.path = string;
+
+    // and we're done
+    return parts;
+  };
+  URI.parseHost = function(string, parts) {
+    // Copy chrome, IE, opera backslash-handling behavior.
+    // Back slashes before the query string get converted to forward slashes
+    // See: https://github.com/joyent/node/blob/386fd24f49b0e9d1a8a076592a404168faeecc34/lib/url.js#L115-L124
+    // See: https://code.google.com/p/chromium/issues/detail?id=25916
+    // https://github.com/medialize/URI.js/pull/233
+    string = string.replace(/\\/g, '/');
+
+    // extract host:port
+    var pos = string.indexOf('/');
+    var bracketPos;
+    var t;
+
+    if (pos === -1) {
+      pos = string.length;
+    }
+
+    if (string.charAt(0) === '[') {
+      // IPv6 host - http://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-04#section-6
+      // I claim most client software breaks on IPv6 anyways. To simplify things, URI only accepts
+      // IPv6+port in the format [2001:db8::1]:80 (for the time being)
+      bracketPos = string.indexOf(']');
+      parts.hostname = string.substring(1, bracketPos) || null;
+      parts.port = string.substring(bracketPos + 2, pos) || null;
+      if (parts.port === '/') {
+        parts.port = null;
+      }
+    } else {
+      var firstColon = string.indexOf(':');
+      var firstSlash = string.indexOf('/');
+      var nextColon = string.indexOf(':', firstColon + 1);
+      if (nextColon !== -1 && (firstSlash === -1 || nextColon < firstSlash)) {
+        // IPv6 host contains multiple colons - but no port
+        // this notation is actually not allowed by RFC 3986, but we're a liberal parser
+        parts.hostname = string.substring(0, pos) || null;
+        parts.port = null;
+      } else {
+        t = string.substring(0, pos).split(':');
+        parts.hostname = t[0] || null;
+        parts.port = t[1] || null;
+      }
+    }
+
+    if (parts.hostname && string.substring(pos).charAt(0) !== '/') {
+      pos++;
+      string = '/' + string;
+    }
+
+    return string.substring(pos) || '/';
+  };
+  URI.parseAuthority = function(string, parts) {
+    string = URI.parseUserinfo(string, parts);
+    return URI.parseHost(string, parts);
+  };
+  URI.parseUserinfo = function(string, parts) {
+    // extract username:password
+    var firstSlash = string.indexOf('/');
+    var pos = string.lastIndexOf('@', firstSlash > -1 ? firstSlash : string.length - 1);
+    var t;
+
+    // authority@ must come before /path
+    if (pos > -1 && (firstSlash === -1 || pos < firstSlash)) {
+      t = string.substring(0, pos).split(':');
+      parts.username = t[0] ? URI.decode(t[0]) : null;
+      t.shift();
+      parts.password = t[0] ? URI.decode(t.join(':')) : null;
+      string = string.substring(pos + 1);
+    } else {
+      parts.username = null;
+      parts.password = null;
+    }
+
+    return string;
+  };
+  URI.parseQuery = function(string, escapeQuerySpace) {
+    if (!string) {
+      return {};
+    }
+
+    // throw out the funky business - "?"[name"="value"&"]+
+    string = string.replace(/&+/g, '&').replace(/^\?*&*|&+$/g, '');
+
+    if (!string) {
+      return {};
+    }
+
+    var items = {};
+    var splits = string.split('&');
+    var length = splits.length;
+    var v, name, value;
+
+    for (var i = 0; i < length; i++) {
+      v = splits[i].split('=');
+      name = URI.decodeQuery(v.shift(), escapeQuerySpace);
+      // no "=" is null according to http://dvcs.w3.org/hg/url/raw-file/tip/Overview.html#collect-url-parameters
+      value = v.length ? URI.decodeQuery(v.join('='), escapeQuerySpace) : null;
+
+      if (hasOwn.call(items, name)) {
+        if (typeof items[name] === 'string' || items[name] === null) {
+          items[name] = [items[name]];
+        }
+
+        items[name].push(value);
+      } else {
+        items[name] = value;
+      }
+    }
+
+    return items;
+  };
+
+  URI.build = function(parts) {
+    var t = '';
+
+    if (parts.protocol) {
+      t += parts.protocol + ':';
+    }
+
+    if (!parts.urn && (t || parts.hostname)) {
+      t += '//';
+    }
+
+    t += (URI.buildAuthority(parts) || '');
+
+    if (typeof parts.path === 'string') {
+      if (parts.path.charAt(0) !== '/' && typeof parts.hostname === 'string') {
+        t += '/';
+      }
+
+      t += parts.path;
+    }
+
+    if (typeof parts.query === 'string' && parts.query) {
+      t += '?' + parts.query;
+    }
+
+    if (typeof parts.fragment === 'string' && parts.fragment) {
+      t += '#' + parts.fragment;
+    }
+    return t;
+  };
+  URI.buildHost = function(parts) {
+    var t = '';
+
+    if (!parts.hostname) {
+      return '';
+    } else if (URI.ip6_expression.test(parts.hostname)) {
+      t += '[' + parts.hostname + ']';
+    } else {
+      t += parts.hostname;
+    }
+
+    if (parts.port) {
+      t += ':' + parts.port;
+    }
+
+    return t;
+  };
+  URI.buildAuthority = function(parts) {
+    return URI.buildUserinfo(parts) + URI.buildHost(parts);
+  };
+  URI.buildUserinfo = function(parts) {
+    var t = '';
+
+    if (parts.username) {
+      t += URI.encode(parts.username);
+
+      if (parts.password) {
+        t += ':' + URI.encode(parts.password);
+      }
+
+      t += '@';
+    }
+
+    return t;
+  };
+  URI.buildQuery = function(data, duplicateQueryParameters, escapeQuerySpace) {
+    // according to http://tools.ietf.org/html/rfc3986 or http://labs.apache.org/webarch/uri/rfc/rfc3986.html
+    // being »-._~!$&'()*+,;=:@/?« %HEX and alnum are allowed
+    // the RFC explicitly states ?/foo being a valid use case, no mention of parameter syntax!
+    // URI.js treats the query string as being application/x-www-form-urlencoded
+    // see http://www.w3.org/TR/REC-html40/interact/forms.html#form-content-type
+
+    var t = '';
+    var unique, key, i, length;
+    for (key in data) {
+      if (hasOwn.call(data, key) && key) {
+        if (isArray(data[key])) {
+          unique = {};
+          for (i = 0, length = data[key].length; i < length; i++) {
+            if (data[key][i] !== undefined && unique[data[key][i] + ''] === undefined) {
+              t += '&' + URI.buildQueryParameter(key, data[key][i], escapeQuerySpace);
+              if (duplicateQueryParameters !== true) {
+                unique[data[key][i] + ''] = true;
+              }
+            }
+          }
+        } else if (data[key] !== undefined) {
+          t += '&' + URI.buildQueryParameter(key, data[key], escapeQuerySpace);
+        }
+      }
+    }
+
+    return t.substring(1);
+  };
+  URI.buildQueryParameter = function(name, value, escapeQuerySpace) {
+    // http://www.w3.org/TR/REC-html40/interact/forms.html#form-content-type -- application/x-www-form-urlencoded
+    // don't append "=" for null values, according to http://dvcs.w3.org/hg/url/raw-file/tip/Overview.html#url-parameter-serialization
+    return URI.encodeQuery(name, escapeQuerySpace) + (value !== null ? '=' + URI.encodeQuery(value, escapeQuerySpace) : '');
+  };
+
+  URI.addQuery = function(data, name, value) {
+    if (typeof name === 'object') {
+      for (var key in name) {
+        if (hasOwn.call(name, key)) {
+          URI.addQuery(data, key, name[key]);
+        }
+      }
+    } else if (typeof name === 'string') {
+      if (data[name] === undefined) {
+        data[name] = value;
+        return;
+      } else if (typeof data[name] === 'string') {
+        data[name] = [data[name]];
+      }
+
+      if (!isArray(value)) {
+        value = [value];
+      }
+
+      data[name] = (data[name] || []).concat(value);
+    } else {
+      throw new TypeError('URI.addQuery() accepts an object, string as the name parameter');
+    }
+  };
+  URI.removeQuery = function(data, name, value) {
+    var i, length, key;
+
+    if (isArray(name)) {
+      for (i = 0, length = name.length; i < length; i++) {
+        data[name[i]] = undefined;
+      }
+    } else if (getType(name) === 'RegExp') {
+      for (key in data) {
+        if (name.test(key)) {
+          data[key] = undefined;
+        }
+      }
+    } else if (typeof name === 'object') {
+      for (key in name) {
+        if (hasOwn.call(name, key)) {
+          URI.removeQuery(data, key, name[key]);
+        }
+      }
+    } else if (typeof name === 'string') {
+      if (value !== undefined) {
+        if (getType(value) === 'RegExp') {
+          if (!isArray(data[name]) && value.test(data[name])) {
+            data[name] = undefined;
+          } else {
+            data[name] = filterArrayValues(data[name], value);
+          }
+        } else if (data[name] === String(value) && (!isArray(value) || value.length === 1)) {
+          data[name] = undefined;
+        } else if (isArray(data[name])) {
+          data[name] = filterArrayValues(data[name], value);
+        }
+      } else {
+        data[name] = undefined;
+      }
+    } else {
+      throw new TypeError('URI.removeQuery() accepts an object, string, RegExp as the first parameter');
+    }
+  };
+  URI.hasQuery = function(data, name, value, withinArray) {
+    if (typeof name === 'object') {
+      for (var key in name) {
+        if (hasOwn.call(name, key)) {
+          if (!URI.hasQuery(data, key, name[key])) {
+            return false;
+          }
+        }
+      }
+
+      return true;
+    } else if (typeof name !== 'string') {
+      throw new TypeError('URI.hasQuery() accepts an object, string as the name parameter');
+    }
+
+    switch (getType(value)) {
+      case 'Undefined':
+        // true if exists (but may be empty)
+        return name in data; // data[name] !== undefined;
+
+      case 'Boolean':
+        // true if exists and non-empty
+        var _booly = Boolean(isArray(data[name]) ? data[name].length : data[name]);
+        return value === _booly;
+
+      case 'Function':
+        // allow complex comparison
+        return !!value(data[name], name, data);
+
+      case 'Array':
+        if (!isArray(data[name])) {
+          return false;
+        }
+
+        var op = withinArray ? arrayContains : arraysEqual;
+        return op(data[name], value);
+
+      case 'RegExp':
+        if (!isArray(data[name])) {
+          return Boolean(data[name] && data[name].match(value));
+        }
+
+        if (!withinArray) {
+          return false;
+        }
+
+        return arrayContains(data[name], value);
+
+      case 'Number':
+        value = String(value);
+        /* falls through */
+      case 'String':
+        if (!isArray(data[name])) {
+          return data[name] === value;
+        }
+
+        if (!withinArray) {
+          return false;
+        }
+
+        return arrayContains(data[name], value);
+
+      default:
+        throw new TypeError('URI.hasQuery() accepts undefined, boolean, string, number, RegExp, Function as the value parameter');
+    }
+  };
+
+
+  URI.commonPath = function(one, two) {
+    var length = Math.min(one.length, two.length);
+    var pos;
+
+    // find first non-matching character
+    for (pos = 0; pos < length; pos++) {
+      if (one.charAt(pos) !== two.charAt(pos)) {
+        pos--;
+        break;
+      }
+    }
+
+    if (pos < 1) {
+      return one.charAt(0) === two.charAt(0) && one.charAt(0) === '/' ? '/' : '';
+    }
+
+    // revert to last /
+    if (one.charAt(pos) !== '/' || two.charAt(pos) !== '/') {
+      pos = one.substring(0, pos).lastIndexOf('/');
+    }
+
+    return one.substring(0, pos + 1);
+  };
+
+  URI.withinString = function(string, callback, options) {
+    options || (options = {});
+    var _start = options.start || URI.findUri.start;
+    var _end = options.end || URI.findUri.end;
+    var _trim = options.trim || URI.findUri.trim;
+    var _attributeOpen = /[a-z0-9-]=["']?$/i;
+
+    _start.lastIndex = 0;
+    while (true) {
+      var match = _start.exec(string);
+      if (!match) {
+        break;
+      }
+
+      var start = match.index;
+      if (options.ignoreHtml) {
+        // attribut(e=["']?$)
+        var attributeOpen = string.slice(Math.max(start - 3, 0), start);
+        if (attributeOpen && _attributeOpen.test(attributeOpen)) {
+          continue;
+        }
+      }
+
+      var end = start + string.slice(start).search(_end);
+      var slice = string.slice(start, end).replace(_trim, '');
+      if (options.ignore && options.ignore.test(slice)) {
+        continue;
+      }
+
+      end = start + slice.length;
+      var result = callback(slice, start, end, string);
+      string = string.slice(0, start) + result + string.slice(end);
+      _start.lastIndex = start + result.length;
+    }
+
+    _start.lastIndex = 0;
+    return string;
+  };
+
+  URI.ensureValidHostname = function(v) {
+    // Theoretically URIs allow percent-encoding in Hostnames (according to RFC 3986)
+    // they are not part of DNS and therefore ignored by URI.js
+
+    if (v.match(URI.invalid_hostname_characters)) {
+      // test punycode
+      if (!punycode) {
+        throw new TypeError('Hostname "' + v + '" contains characters other than [A-Z0-9.-] and Punycode.js is not available');
+      }
+
+      if (punycode.toASCII(v).match(URI.invalid_hostname_characters)) {
+        throw new TypeError('Hostname "' + v + '" contains characters other than [A-Z0-9.-]');
+      }
+    }
+  };
+
+  // noConflict
+  URI.noConflict = function(removeAll) {
+    if (removeAll) {
+      var unconflicted = {
+        URI: this.noConflict()
+      };
+
+      if (root.URITemplate && typeof root.URITemplate.noConflict === 'function') {
+        unconflicted.URITemplate = root.URITemplate.noConflict();
+      }
+
+      if (root.IPv6 && typeof root.IPv6.noConflict === 'function') {
+        unconflicted.IPv6 = root.IPv6.noConflict();
+      }
+
+      if (root.SecondLevelDomains && typeof root.SecondLevelDomains.noConflict === 'function') {
+        unconflicted.SecondLevelDomains = root.SecondLevelDomains.noConflict();
+      }
+
+      return unconflicted;
+    } else if (root.URI === this) {
+      root.URI = _URI;
+    }
+
+    return this;
+  };
+
+  p.build = function(deferBuild) {
+    if (deferBuild === true) {
+      this._deferred_build = true;
+    } else if (deferBuild === undefined || this._deferred_build) {
+      this._string = URI.build(this._parts);
+      this._deferred_build = false;
+    }
+
+    return this;
+  };
+
+  p.clone = function() {
+    return new URI(this);
+  };
+
+  p.valueOf = p.toString = function() {
+    return this.build(false)._string;
+  };
+
+
+  function generateSimpleAccessor(_part){
+    return function(v, build) {
+      if (v === undefined) {
+        return this._parts[_part] || '';
+      } else {
+        this._parts[_part] = v || null;
+        this.build(!build);
+        return this;
+      }
+    };
+  }
+
+  function generatePrefixAccessor(_part, _key){
+    return function(v, build) {
+      if (v === undefined) {
+        return this._parts[_part] || '';
+      } else {
+        if (v !== null) {
+          v = v + '';
+          if (v.charAt(0) === _key) {
+            v = v.substring(1);
+          }
+        }
+
+        this._parts[_part] = v;
+        this.build(!build);
+        return this;
+      }
+    };
+  }
+
+  p.protocol = generateSimpleAccessor('protocol');
+  p.username = generateSimpleAccessor('username');
+  p.password = generateSimpleAccessor('password');
+  p.hostname = generateSimpleAccessor('hostname');
+  p.port = generateSimpleAccessor('port');
+  p.query = generatePrefixAccessor('query', '?');
+  p.fragment = generatePrefixAccessor('fragment', '#');
+
+  p.search = function(v, build) {
+    var t = this.query(v, build);
+    return typeof t === 'string' && t.length ? ('?' + t) : t;
+  };
+  p.hash = function(v, build) {
+    var t = this.fragment(v, build);
+    return typeof t === 'string' && t.length ? ('#' + t) : t;
+  };
+
+  p.pathname = function(v, build) {
+    if (v === undefined || v === true) {
+      var res = this._parts.path || (this._parts.hostname ? '/' : '');
+      return v ? (this._parts.urn ? URI.decodeUrnPath : URI.decodePath)(res) : res;
+    } else {
+      if (this._parts.urn) {
+        this._parts.path = v ? URI.recodeUrnPath(v) : '';
+      } else {
+        this._parts.path = v ? URI.recodePath(v) : '/';
+      }
+      this.build(!build);
+      return this;
+    }
+  };
+  p.path = p.pathname;
+  p.href = function(href, build) {
+    var key;
+
+    if (href === undefined) {
+      return this.toString();
+    }
+
+    this._string = '';
+    this._parts = URI._parts();
+
+    var _URI = href instanceof URI;
+    var _object = typeof href === 'object' && (href.hostname || href.path || href.pathname);
+    if (href.nodeName) {
+      var attribute = URI.getDomAttribute(href);
+      href = href[attribute] || '';
+      _object = false;
+    }
+
+    // window.location is reported to be an object, but it's not the sort
+    // of object we're looking for:
+    // * location.protocol ends with a colon
+    // * location.query != object.search
+    // * location.hash != object.fragment
+    // simply serializing the unknown object should do the trick
+    // (for location, not for everything...)
+    if (!_URI && _object && href.pathname !== undefined) {
+      href = href.toString();
+    }
+
+    if (typeof href === 'string' || href instanceof String) {
+      this._parts = URI.parse(String(href), this._parts);
+    } else if (_URI || _object) {
+      var src = _URI ? href._parts : href;
+      for (key in src) {
+        if (hasOwn.call(this._parts, key)) {
+          this._parts[key] = src[key];
+        }
+      }
+    } else {
+      throw new TypeError('invalid input');
+    }
+
+    this.build(!build);
+    return this;
+  };
+
+  // identification accessors
+  p.is = function(what) {
+    var ip = false;
+    var ip4 = false;
+    var ip6 = false;
+    var name = false;
+    var sld = false;
+    var idn = false;
+    var punycode = false;
+    var relative = !this._parts.urn;
+
+    if (this._parts.hostname) {
+      relative = false;
+      ip4 = URI.ip4_expression.test(this._parts.hostname);
+      ip6 = URI.ip6_expression.test(this._parts.hostname);
+      ip = ip4 || ip6;
+      name = !ip;
+      sld = name && SLD && SLD.has(this._parts.hostname);
+      idn = name && URI.idn_expression.test(this._parts.hostname);
+      punycode = name && URI.punycode_expression.test(this._parts.hostname);
+    }
+
+    switch (what.toLowerCase()) {
+      case 'relative':
+        return relative;
+
+      case 'absolute':
+        return !relative;
+
+      // hostname identification
+      case 'domain':
+      case 'name':
+        return name;
+
+      case 'sld':
+        return sld;
+
+      case 'ip':
+        return ip;
+
+      case 'ip4':
+      case 'ipv4':
+      case 'inet4':
+        return ip4;
+
+      case 'ip6':
+      case 'ipv6':
+      case 'inet6':
+        return ip6;
+
+      case 'idn':
+        return idn;
+
+      case 'url':
+        return !this._parts.urn;
+
+      case 'urn':
+        return !!this._parts.urn;
+
+      case 'punycode':
+        return punycode;
+    }
+
+    return null;
+  };
+
+  // component specific input validation
+  var _protocol = p.protocol;
+  var _port = p.port;
+  var _hostname = p.hostname;
+
+  p.protocol = function(v, build) {
+    if (v !== undefined) {
+      if (v) {
+        // accept trailing ://
+        v = v.replace(/:(\/\/)?$/, '');
+
+        if (!v.match(URI.protocol_expression)) {
+          throw new TypeError('Protocol "' + v + '" contains characters other than [A-Z0-9.+-] or doesn\'t start with [A-Z]');
+        }
+      }
+    }
+    return _protocol.call(this, v, build);
+  };
+  p.scheme = p.protocol;
+  p.port = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (v !== undefined) {
+      if (v === 0) {
+        v = null;
+      }
+
+      if (v) {
+        v += '';
+        if (v.charAt(0) === ':') {
+          v = v.substring(1);
+        }
+
+        if (v.match(/[^0-9]/)) {
+          throw new TypeError('Port "' + v + '" contains characters other than [0-9]');
+        }
+      }
+    }
+    return _port.call(this, v, build);
+  };
+  p.hostname = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (v !== undefined) {
+      var x = {};
+      var res = URI.parseHost(v, x);
+      if (res !== '/') {
+        throw new TypeError('Hostname "' + v + '" contains characters other than [A-Z0-9.-]');
+      }
+
+      v = x.hostname;
+    }
+    return _hostname.call(this, v, build);
+  };
+
+  // compound accessors
+  p.origin = function(v, build) {
+    var parts;
+
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (v === undefined) {
+      var protocol = this.protocol();
+      var authority = this.authority();
+      if (!authority) return '';
+      return (protocol ? protocol + '://' : '') + this.authority();
+    } else {
+      var origin = URI(v);
+      this
+        .protocol(origin.protocol())
+        .authority(origin.authority())
+        .build(!build);
+      return this;
+    }
+  };
+  p.host = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (v === undefined) {
+      return this._parts.hostname ? URI.buildHost(this._parts) : '';
+    } else {
+      var res = URI.parseHost(v, this._parts);
+      if (res !== '/') {
+        throw new TypeError('Hostname "' + v + '" contains characters other than [A-Z0-9.-]');
+      }
+
+      this.build(!build);
+      return this;
+    }
+  };
+  p.authority = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (v === undefined) {
+      return this._parts.hostname ? URI.buildAuthority(this._parts) : '';
+    } else {
+      var res = URI.parseAuthority(v, this._parts);
+      if (res !== '/') {
+        throw new TypeError('Hostname "' + v + '" contains characters other than [A-Z0-9.-]');
+      }
+
+      this.build(!build);
+      return this;
+    }
+  };
+  p.userinfo = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (v === undefined) {
+      if (!this._parts.username) {
+        return '';
+      }
+
+      var t = URI.buildUserinfo(this._parts);
+      return t.substring(0, t.length -1);
+    } else {
+      if (v[v.length-1] !== '@') {
+        v += '@';
+      }
+
+      URI.parseUserinfo(v, this._parts);
+      this.build(!build);
+      return this;
+    }
+  };
+  p.resource = function(v, build) {
+    var parts;
+
+    if (v === undefined) {
+      return this.path() + this.search() + this.hash();
+    }
+
+    parts = URI.parse(v);
+    this._parts.path = parts.path;
+    this._parts.query = parts.query;
+    this._parts.fragment = parts.fragment;
+    this.build(!build);
+    return this;
+  };
+
+  // fraction accessors
+  p.subdomain = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    // convenience, return "www" from "www.example.org"
+    if (v === undefined) {
+      if (!this._parts.hostname || this.is('IP')) {
+        return '';
+      }
+
+      // grab domain and add another segment
+      var end = this._parts.hostname.length - this.domain().length - 1;
+      return this._parts.hostname.substring(0, end) || '';
+    } else {
+      var e = this._parts.hostname.length - this.domain().length;
+      var sub = this._parts.hostname.substring(0, e);
+      var replace = new RegExp('^' + escapeRegEx(sub));
+
+      if (v && v.charAt(v.length - 1) !== '.') {
+        v += '.';
+      }
+
+      if (v) {
+        URI.ensureValidHostname(v);
+      }
+
+      this._parts.hostname = this._parts.hostname.replace(replace, v);
+      this.build(!build);
+      return this;
+    }
+  };
+  p.domain = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (typeof v === 'boolean') {
+      build = v;
+      v = undefined;
+    }
+
+    // convenience, return "example.org" from "www.example.org"
+    if (v === undefined) {
+      if (!this._parts.hostname || this.is('IP')) {
+        return '';
+      }
+
+      // if hostname consists of 1 or 2 segments, it must be the domain
+      var t = this._parts.hostname.match(/\./g);
+      if (t && t.length < 2) {
+        return this._parts.hostname;
+      }
+
+      // grab tld and add another segment
+      var end = this._parts.hostname.length - this.tld(build).length - 1;
+      end = this._parts.hostname.lastIndexOf('.', end -1) + 1;
+      return this._parts.hostname.substring(end) || '';
+    } else {
+      if (!v) {
+        throw new TypeError('cannot set domain empty');
+      }
+
+      URI.ensureValidHostname(v);
+
+      if (!this._parts.hostname || this.is('IP')) {
+        this._parts.hostname = v;
+      } else {
+        var replace = new RegExp(escapeRegEx(this.domain()) + '$');
+        this._parts.hostname = this._parts.hostname.replace(replace, v);
+      }
+
+      this.build(!build);
+      return this;
+    }
+  };
+  p.tld = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (typeof v === 'boolean') {
+      build = v;
+      v = undefined;
+    }
+
+    // return "org" from "www.example.org"
+    if (v === undefined) {
+      if (!this._parts.hostname || this.is('IP')) {
+        return '';
+      }
+
+      var pos = this._parts.hostname.lastIndexOf('.');
+      var tld = this._parts.hostname.substring(pos + 1);
+
+      if (build !== true && SLD && SLD.list[tld.toLowerCase()]) {
+        return SLD.get(this._parts.hostname) || tld;
+      }
+
+      return tld;
+    } else {
+      var replace;
+
+      if (!v) {
+        throw new TypeError('cannot set TLD empty');
+      } else if (v.match(/[^a-zA-Z0-9-]/)) {
+        if (SLD && SLD.is(v)) {
+          replace = new RegExp(escapeRegEx(this.tld()) + '$');
+          this._parts.hostname = this._parts.hostname.replace(replace, v);
+        } else {
+          throw new TypeError('TLD "' + v + '" contains characters other than [A-Z0-9]');
+        }
+      } else if (!this._parts.hostname || this.is('IP')) {
+        throw new ReferenceError('cannot set TLD on non-domain host');
+      } else {
+        replace = new RegExp(escapeRegEx(this.tld()) + '$');
+        this._parts.hostname = this._parts.hostname.replace(replace, v);
+      }
+
+      this.build(!build);
+      return this;
+    }
+  };
+  p.directory = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (v === undefined || v === true) {
+      if (!this._parts.path && !this._parts.hostname) {
+        return '';
+      }
+
+      if (this._parts.path === '/') {
+        return '/';
+      }
+
+      var end = this._parts.path.length - this.filename().length - 1;
+      var res = this._parts.path.substring(0, end) || (this._parts.hostname ? '/' : '');
+
+      return v ? URI.decodePath(res) : res;
+
+    } else {
+      var e = this._parts.path.length - this.filename().length;
+      var directory = this._parts.path.substring(0, e);
+      var replace = new RegExp('^' + escapeRegEx(directory));
+
+      // fully qualifier directories begin with a slash
+      if (!this.is('relative')) {
+        if (!v) {
+          v = '/';
+        }
+
+        if (v.charAt(0) !== '/') {
+          v = '/' + v;
+        }
+      }
+
+      // directories always end with a slash
+      if (v && v.charAt(v.length - 1) !== '/') {
+        v += '/';
+      }
+
+      v = URI.recodePath(v);
+      this._parts.path = this._parts.path.replace(replace, v);
+      this.build(!build);
+      return this;
+    }
+  };
+  p.filename = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (v === undefined || v === true) {
+      if (!this._parts.path || this._parts.path === '/') {
+        return '';
+      }
+
+      var pos = this._parts.path.lastIndexOf('/');
+      var res = this._parts.path.substring(pos+1);
+
+      return v ? URI.decodePathSegment(res) : res;
+    } else {
+      var mutatedDirectory = false;
+
+      if (v.charAt(0) === '/') {
+        v = v.substring(1);
+      }
+
+      if (v.match(/\.?\//)) {
+        mutatedDirectory = true;
+      }
+
+      var replace = new RegExp(escapeRegEx(this.filename()) + '$');
+      v = URI.recodePath(v);
+      this._parts.path = this._parts.path.replace(replace, v);
+
+      if (mutatedDirectory) {
+        this.normalizePath(build);
+      } else {
+        this.build(!build);
+      }
+
+      return this;
+    }
+  };
+  p.suffix = function(v, build) {
+    if (this._parts.urn) {
+      return v === undefined ? '' : this;
+    }
+
+    if (v === undefined || v === true) {
+      if (!this._parts.path || this._parts.path === '/') {
+        return '';
+      }
+
+      var filename = this.filename();
+      var pos = filename.lastIndexOf('.');
+      var s, res;
+
+      if (pos === -1) {
+        return '';
+      }
+
+      // suffix may only contain alnum characters (yup, I made this up.)
+      s = filename.substring(pos+1);
+      res = (/^[a-z0-9%]+$/i).test(s) ? s : '';
+      return v ? URI.decodePathSegment(res) : res;
+    } else {
+      if (v.charAt(0) === '.') {
+        v = v.substring(1);
+      }
+
+      var suffix = this.suffix();
+      var replace;
+
+      if (!suffix) {
+        if (!v) {
+          return this;
+        }
+
+        this._parts.path += '.' + URI.recodePath(v);
+      } else if (!v) {
+        replace = new RegExp(escapeRegEx('.' + suffix) + '$');
+      } else {
+        replace = new RegExp(escapeRegEx(suffix) + '$');
+      }
+
+      if (replace) {
+        v = URI.recodePath(v);
+        this._parts.path = this._parts.path.replace(replace, v);
+      }
+
+      this.build(!build);
+      return this;
+    }
+  };
+  p.segment = function(segment, v, build) {
+    var separator = this._parts.urn ? ':' : '/';
+    var path = this.path();
+    var absolute = path.substring(0, 1) === '/';
+    var segments = path.split(separator);
+
+    if (segment !== undefined && typeof segment !== 'number') {
+      build = v;
+      v = segment;
+      segment = undefined;
+    }
+
+    if (segment !== undefined && typeof segment !== 'number') {
+      throw new Error('Bad segment "' + segment + '", must be 0-based integer');
+    }
+
+    if (absolute) {
+      segments.shift();
+    }
+
+    if (segment < 0) {
+      // allow negative indexes to address from the end
+      segment = Math.max(segments.length + segment, 0);
+    }
+
+    if (v === undefined) {
+      /*jshint laxbreak: true */
+      return segment === undefined
+        ? segments
+        : segments[segment];
+      /*jshint laxbreak: false */
+    } else if (segment === null || segments[segment] === undefined) {
+      if (isArray(v)) {
+        segments = [];
+        // collapse empty elements within array
+        for (var i=0, l=v.length; i < l; i++) {
+          if (!v[i].length && (!segments.length || !segments[segments.length -1].length)) {
+            continue;
+          }
+
+          if (segments.length && !segments[segments.length -1].length) {
+            segments.pop();
+          }
+
+          segments.push(trimSlashes(v[i]));
+        }
+      } else if (v || typeof v === 'string') {
+        v = trimSlashes(v);
+        if (segments[segments.length -1] === '') {
+          // empty trailing elements have to be overwritten
+          // to prevent results such as /foo//bar
+          segments[segments.length -1] = v;
+        } else {
+          segments.push(v);
+        }
+      }
+    } else {
+      if (v) {
+        segments[segment] = trimSlashes(v);
+      } else {
+        segments.splice(segment, 1);
+      }
+    }
+
+    if (absolute) {
+      segments.unshift('');
+    }
+
+    return this.path(segments.join(separator), build);
+  };
+  p.segmentCoded = function(segment, v, build) {
+    var segments, i, l;
+
+    if (typeof segment !== 'number') {
+      build = v;
+      v = segment;
+      segment = undefined;
+    }
+
+    if (v === undefined) {
+      segments = this.segment(segment, v, build);
+      if (!isArray(segments)) {
+        segments = segments !== undefined ? URI.decode(segments) : undefined;
+      } else {
+        for (i = 0, l = segments.length; i < l; i++) {
+          segments[i] = URI.decode(segments[i]);
+        }
+      }
+
+      return segments;
+    }
+
+    if (!isArray(v)) {
+      v = (typeof v === 'string' || v instanceof String) ? URI.encode(v) : v;
+    } else {
+      for (i = 0, l = v.length; i < l; i++) {
+        v[i] = URI.encode(v[i]);
+      }
+    }
+
+    return this.segment(segment, v, build);
+  };
+
+  // mutating query string
+  var q = p.query;
+  p.query = function(v, build) {
+    if (v === true) {
+      return URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
+    } else if (typeof v === 'function') {
+      var data = URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
+      var result = v.call(this, data);
+      this._parts.query = URI.buildQuery(result || data, this._parts.duplicateQueryParameters, this._parts.escapeQuerySpace);
+      this.build(!build);
+      return this;
+    } else if (v !== undefined && typeof v !== 'string') {
+      this._parts.query = URI.buildQuery(v, this._parts.duplicateQueryParameters, this._parts.escapeQuerySpace);
+      this.build(!build);
+      return this;
+    } else {
+      return q.call(this, v, build);
+    }
+  };
+  p.setQuery = function(name, value, build) {
+    var data = URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
+
+    if (typeof name === 'string' || name instanceof String) {
+      data[name] = value !== undefined ? value : null;
+    } else if (typeof name === 'object') {
+      for (var key in name) {
+        if (hasOwn.call(name, key)) {
+          data[key] = name[key];
+        }
+      }
+    } else {
+      throw new TypeError('URI.addQuery() accepts an object, string as the name parameter');
+    }
+
+    this._parts.query = URI.buildQuery(data, this._parts.duplicateQueryParameters, this._parts.escapeQuerySpace);
+    if (typeof name !== 'string') {
+      build = value;
+    }
+
+    this.build(!build);
+    return this;
+  };
+  p.addQuery = function(name, value, build) {
+    var data = URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
+    URI.addQuery(data, name, value === undefined ? null : value);
+    this._parts.query = URI.buildQuery(data, this._parts.duplicateQueryParameters, this._parts.escapeQuerySpace);
+    if (typeof name !== 'string') {
+      build = value;
+    }
+
+    this.build(!build);
+    return this;
+  };
+  p.removeQuery = function(name, value, build) {
+    var data = URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
+    URI.removeQuery(data, name, value);
+    this._parts.query = URI.buildQuery(data, this._parts.duplicateQueryParameters, this._parts.escapeQuerySpace);
+    if (typeof name !== 'string') {
+      build = value;
+    }
+
+    this.build(!build);
+    return this;
+  };
+  p.hasQuery = function(name, value, withinArray) {
+    var data = URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
+    return URI.hasQuery(data, name, value, withinArray);
+  };
+  p.setSearch = p.setQuery;
+  p.addSearch = p.addQuery;
+  p.removeSearch = p.removeQuery;
+  p.hasSearch = p.hasQuery;
+
+  // sanitizing URLs
+  p.normalize = function() {
+    if (this._parts.urn) {
+      return this
+        .normalizeProtocol(false)
+        .normalizePath(false)
+        .normalizeQuery(false)
+        .normalizeFragment(false)
+        .build();
+    }
+
+    return this
+      .normalizeProtocol(false)
+      .normalizeHostname(false)
+      .normalizePort(false)
+      .normalizePath(false)
+      .normalizeQuery(false)
+      .normalizeFragment(false)
+      .build();
+  };
+  p.normalizeProtocol = function(build) {
+    if (typeof this._parts.protocol === 'string') {
+      this._parts.protocol = this._parts.protocol.toLowerCase();
+      this.build(!build);
+    }
+
+    return this;
+  };
+  p.normalizeHostname = function(build) {
+    if (this._parts.hostname) {
+      if (this.is('IDN') && punycode) {
+        this._parts.hostname = punycode.toASCII(this._parts.hostname);
+      } else if (this.is('IPv6') && IPv6) {
+        this._parts.hostname = IPv6.best(this._parts.hostname);
+      }
+
+      this._parts.hostname = this._parts.hostname.toLowerCase();
+      this.build(!build);
+    }
+
+    return this;
+  };
+  p.normalizePort = function(build) {
+    // remove port of it's the protocol's default
+    if (typeof this._parts.protocol === 'string' && this._parts.port === URI.defaultPorts[this._parts.protocol]) {
+      this._parts.port = null;
+      this.build(!build);
+    }
+
+    return this;
+  };
+  p.normalizePath = function(build) {
+    var _path = this._parts.path;
+    if (!_path) {
+      return this;
+    }
+
+    if (this._parts.urn) {
+      this._parts.path = URI.recodeUrnPath(this._parts.path);
+      this.build(!build);
+      return this;
+    }
+
+    if (this._parts.path === '/') {
+      return this;
+    }
+
+    _path = URI.recodePath(_path);
+
+    var _was_relative;
+    var _leadingParents = '';
+    var _parent, _pos;
+
+    // handle relative paths
+    if (_path.charAt(0) !== '/') {
+      _was_relative = true;
+      _path = '/' + _path;
+    }
+
+    // handle relative files (as opposed to directories)
+    if (_path.slice(-3) === '/..' || _path.slice(-2) === '/.') {
+      _path += '/';
+    }
+
+    // resolve simples
+    _path = _path
+      .replace(/(\/(\.\/)+)|(\/\.$)/g, '/')
+      .replace(/\/{2,}/g, '/');
+
+    // remember leading parents
+    if (_was_relative) {
+      _leadingParents = _path.substring(1).match(/^(\.\.\/)+/) || '';
+      if (_leadingParents) {
+        _leadingParents = _leadingParents[0];
+      }
+    }
+
+    // resolve parents
+    while (true) {
+      _parent = _path.search(/\/\.\.(\/|$)/);
+      if (_parent === -1) {
+        // no more ../ to resolve
+        break;
+      } else if (_parent === 0) {
+        // top level cannot be relative, skip it
+        _path = _path.substring(3);
+        continue;
+      }
+
+      _pos = _path.substring(0, _parent).lastIndexOf('/');
+      if (_pos === -1) {
+        _pos = _parent;
+      }
+      _path = _path.substring(0, _pos) + _path.substring(_parent + 3);
+    }
+
+    // revert to relative
+    if (_was_relative && this.is('relative')) {
+      _path = _leadingParents + _path.substring(1);
+    }
+
+    this._parts.path = _path;
+    this.build(!build);
+    return this;
+  };
+  p.normalizePathname = p.normalizePath;
+  p.normalizeQuery = function(build) {
+    if (typeof this._parts.query === 'string') {
+      if (!this._parts.query.length) {
+        this._parts.query = null;
+      } else {
+        this.query(URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace));
+      }
+
+      this.build(!build);
+    }
+
+    return this;
+  };
+  p.normalizeFragment = function(build) {
+    if (!this._parts.fragment) {
+      this._parts.fragment = null;
+      this.build(!build);
+    }
+
+    return this;
+  };
+  p.normalizeSearch = p.normalizeQuery;
+  p.normalizeHash = p.normalizeFragment;
+
+  p.iso8859 = function() {
+    // expect unicode input, iso8859 output
+    var e = URI.encode;
+    var d = URI.decode;
+
+    URI.encode = escape;
+    URI.decode = decodeURIComponent;
+    try {
+      this.normalize();
+    } finally {
+      URI.encode = e;
+      URI.decode = d;
+    }
+    return this;
+  };
+
+  p.unicode = function() {
+    // expect iso8859 input, unicode output
+    var e = URI.encode;
+    var d = URI.decode;
+
+    URI.encode = strictEncodeURIComponent;
+    URI.decode = unescape;
+    try {
+      this.normalize();
+    } finally {
+      URI.encode = e;
+      URI.decode = d;
+    }
+    return this;
+  };
+
+  p.readable = function() {
+    var uri = this.clone();
+    // removing username, password, because they shouldn't be displayed according to RFC 3986
+    uri.username('').password('').normalize();
+    var t = '';
+    if (uri._parts.protocol) {
+      t += uri._parts.protocol + '://';
+    }
+
+    if (uri._parts.hostname) {
+      if (uri.is('punycode') && punycode) {
+        t += punycode.toUnicode(uri._parts.hostname);
+        if (uri._parts.port) {
+          t += ':' + uri._parts.port;
+        }
+      } else {
+        t += uri.host();
+      }
+    }
+
+    if (uri._parts.hostname && uri._parts.path && uri._parts.path.charAt(0) !== '/') {
+      t += '/';
+    }
+
+    t += uri.path(true);
+    if (uri._parts.query) {
+      var q = '';
+      for (var i = 0, qp = uri._parts.query.split('&'), l = qp.length; i < l; i++) {
+        var kv = (qp[i] || '').split('=');
+        q += '&' + URI.decodeQuery(kv[0], this._parts.escapeQuerySpace)
+          .replace(/&/g, '%26');
+
+        if (kv[1] !== undefined) {
+          q += '=' + URI.decodeQuery(kv[1], this._parts.escapeQuerySpace)
+            .replace(/&/g, '%26');
+        }
+      }
+      t += '?' + q.substring(1);
+    }
+
+    t += URI.decodeQuery(uri.hash(), true);
+    return t;
+  };
+
+  // resolving relative and absolute URLs
+  p.absoluteTo = function(base) {
+    var resolved = this.clone();
+    var properties = ['protocol', 'username', 'password', 'hostname', 'port'];
+    var basedir, i, p;
+
+    if (this._parts.urn) {
+      throw new Error('URNs do not have any generally defined hierarchical components');
+    }
+
+    if (!(base instanceof URI)) {
+      base = new URI(base);
+    }
+
+    if (!resolved._parts.protocol) {
+      resolved._parts.protocol = base._parts.protocol;
+    }
+
+    if (this._parts.hostname) {
+      return resolved;
+    }
+
+    for (i = 0; (p = properties[i]); i++) {
+      resolved._parts[p] = base._parts[p];
+    }
+
+    if (!resolved._parts.path) {
+      resolved._parts.path = base._parts.path;
+      if (!resolved._parts.query) {
+        resolved._parts.query = base._parts.query;
+      }
+    } else if (resolved._parts.path.substring(-2) === '..') {
+      resolved._parts.path += '/';
+    }
+
+    if (resolved.path().charAt(0) !== '/') {
+      basedir = base.directory();
+      basedir = basedir ? basedir : base.path().indexOf('/') === 0 ? '/' : '';
+      resolved._parts.path = (basedir ? (basedir + '/') : '') + resolved._parts.path;
+      resolved.normalizePath();
+    }
+
+    resolved.build();
+    return resolved;
+  };
+  p.relativeTo = function(base) {
+    var relative = this.clone().normalize();
+    var relativeParts, baseParts, common, relativePath, basePath;
+
+    if (relative._parts.urn) {
+      throw new Error('URNs do not have any generally defined hierarchical components');
+    }
+
+    base = new URI(base).normalize();
+    relativeParts = relative._parts;
+    baseParts = base._parts;
+    relativePath = relative.path();
+    basePath = base.path();
+
+    if (relativePath.charAt(0) !== '/') {
+      throw new Error('URI is already relative');
+    }
+
+    if (basePath.charAt(0) !== '/') {
+      throw new Error('Cannot calculate a URI relative to another relative URI');
+    }
+
+    if (relativeParts.protocol === baseParts.protocol) {
+      relativeParts.protocol = null;
+    }
+
+    if (relativeParts.username !== baseParts.username || relativeParts.password !== baseParts.password) {
+      return relative.build();
+    }
+
+    if (relativeParts.protocol !== null || relativeParts.username !== null || relativeParts.password !== null) {
+      return relative.build();
+    }
+
+    if (relativeParts.hostname === baseParts.hostname && relativeParts.port === baseParts.port) {
+      relativeParts.hostname = null;
+      relativeParts.port = null;
+    } else {
+      return relative.build();
+    }
+
+    if (relativePath === basePath) {
+      relativeParts.path = '';
+      return relative.build();
+    }
+
+    // determine common sub path
+    common = URI.commonPath(relativePath, basePath);
+
+    // If the paths have nothing in common, return a relative URL with the absolute path.
+    if (!common) {
+      return relative.build();
+    }
+
+    var parents = baseParts.path
+      .substring(common.length)
+      .replace(/[^\/]*$/, '')
+      .replace(/.*?\//g, '../');
+
+    relativeParts.path = (parents + relativeParts.path.substring(common.length)) || './';
+
+    return relative.build();
+  };
+
+  // comparing URIs
+  p.equals = function(uri) {
+    var one = this.clone();
+    var two = new URI(uri);
+    var one_map = {};
+    var two_map = {};
+    var checked = {};
+    var one_query, two_query, key;
+
+    one.normalize();
+    two.normalize();
+
+    // exact match
+    if (one.toString() === two.toString()) {
+      return true;
+    }
+
+    // extract query string
+    one_query = one.query();
+    two_query = two.query();
+    one.query('');
+    two.query('');
+
+    // definitely not equal if not even non-query parts match
+    if (one.toString() !== two.toString()) {
+      return false;
+    }
+
+    // query parameters have the same length, even if they're permuted
+    if (one_query.length !== two_query.length) {
+      return false;
+    }
+
+    one_map = URI.parseQuery(one_query, this._parts.escapeQuerySpace);
+    two_map = URI.parseQuery(two_query, this._parts.escapeQuerySpace);
+
+    for (key in one_map) {
+      if (hasOwn.call(one_map, key)) {
+        if (!isArray(one_map[key])) {
+          if (one_map[key] !== two_map[key]) {
+            return false;
+          }
+        } else if (!arraysEqual(one_map[key], two_map[key])) {
+          return false;
+        }
+
+        checked[key] = true;
+      }
+    }
+
+    for (key in two_map) {
+      if (hasOwn.call(two_map, key)) {
+        if (!checked[key]) {
+          // two contains a parameter not present in one
+          return false;
+        }
+      }
+    }
+
+    return true;
+  };
+
+  // state
+  p.duplicateQueryParameters = function(v) {
+    this._parts.duplicateQueryParameters = !!v;
+    return this;
+  };
+
+  p.escapeQuerySpace = function(v) {
+    this._parts.escapeQuerySpace = !!v;
+    return this;
+  };
+
+  return URI;
+}));
diff --git a/lib/vendor/jed.js b/lib/vendor/jed.js
new file mode 120000
index 000000000..181c64459
--- /dev/null
+++ b/lib/vendor/jed.js
@@ -0,0 +1 @@
+../../node_modules/jed/jed.js
\ No newline at end of file
diff --git a/lib/vendor/lodash.core.min.js b/lib/vendor/lodash.core.min.js
new file mode 100644
index 000000000..062e55d49
--- /dev/null
+++ b/lib/vendor/lodash.core.min.js
@@ -0,0 +1,29 @@
+/**
+ * @license
+ * lodash 4.0.0 (Custom Build) lodash.com/license | Underscore.js 1.8.3 underscorejs.org/LICENSE
+ * Build: `lodash core -o ./dist/lodash.core.js`
+ */
+;(function(){function n(n,t){for(var r=-1,e=t.length,u=n.length;++r<e;)n[u+r]=t[r];return n}function t(n,t,r){for(var e=-1,u=n.length;++e<u;){var o=n[e],i=t(o);if(null!=i&&(c===ln?i===i:r(i,c)))var c=i,f=o}return f}function r(n,t,r){var e;return r(n,function(n,r,u){return t(n,r,u)?(e=n,false):void 0}),e}function e(n,t,r,e,u){return u(n,function(n,u,o){r=e?(e=false,n):t(r,n,u,o)}),r}function u(n,t){return w(t,function(t){return n[t]})}function o(n){return n&&n.Object===Object?n:null}function i(n){return vn[n];
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+a.prototype[n]=function(){var n=arguments;return e&&!this.__chain__?t.apply(this.value(),n):this[r](function(r){return t.apply(r,n)})}}),a.prototype.toJSON=a.prototype.valueOf=a.prototype.value=function(){return S(this.__wrapped__,this.__actions__)},(jn||bn||{})._=a,typeof define=="function"&&typeof define.amd=="object"&&define.amd? define(function(){return a}):_n&&gn?(dn&&((gn.exports=a)._=a),_n._=a):wn._=a}).call(this);
\ No newline at end of file
diff --git a/lib/vendor/mithril.js b/lib/vendor/mithril.js
new file mode 100644
index 000000000..d023ac34c
--- /dev/null
+++ b/lib/vendor/mithril.js
@@ -0,0 +1,2132 @@
+;(function (global, factory) { // eslint-disable-line
+	"use strict"
+	/* eslint-disable no-undef */
+	var m = factory(global)
+	if (typeof module === "object" && module != null && module.exports) {
+		module.exports = m
+	} else if (typeof define === "function" && define.amd) {
+		define(function () { return m })
+	} else {
+		global.m = m
+	}
+	/* eslint-enable no-undef */
+})(typeof window !== "undefined" ? window : {}, function (global, undefined) { // eslint-disable-line
+	"use strict"
+
+	m.version = function () {
+		return "v0.2.2-rc.1"
+	}
+
+	var hasOwn = {}.hasOwnProperty
+	var type = {}.toString
+
+	function isFunction(object) {
+		return typeof object === "function"
+	}
+
+	function isObject(object) {
+		return type.call(object) === "[object Object]"
+	}
+
+	function isString(object) {
+		return type.call(object) === "[object String]"
+	}
+
+	var isArray = Array.isArray || function (object) {
+		return type.call(object) === "[object Array]"
+	}
+
+	function noop() {}
+
+	/* eslint-disable max-len */
+	var voidElements = /^(AREA|BASE|BR|COL|COMMAND|EMBED|HR|IMG|INPUT|KEYGEN|LINK|META|PARAM|SOURCE|TRACK|WBR)$/
+	/* eslint-enable max-len */
+
+	// caching commonly used variables
+	var $document, $location, $requestAnimationFrame, $cancelAnimationFrame
+
+	// self invoking function needed because of the way mocks work
+	function initialize(mock) {
+		$document = mock.document
+		$location = mock.location
+		$cancelAnimationFrame = mock.cancelAnimationFrame || mock.clearTimeout
+		$requestAnimationFrame = mock.requestAnimationFrame || mock.setTimeout
+	}
+
+	// testing API
+	m.deps = function (mock) {
+		initialize(global = mock || window)
+		return global
+	}
+
+	m.deps(global)
+
+	/**
+	 * @typedef {String} Tag
+	 * A string that looks like -> div.classname#id[param=one][param2=two]
+	 * Which describes a DOM node
+	 */
+
+	function parseTagAttrs(cell, tag) {
+		var classes = []
+		var parser = /(?:(^|#|\.)([^#\.\[\]]+))|(\[.+?\])/g
+		var match
+
+		while ((match = parser.exec(tag))) {
+			if (match[1] === "" && match[2]) {
+				cell.tag = match[2]
+			} else if (match[1] === "#") {
+				cell.attrs.id = match[2]
+			} else if (match[1] === ".") {
+				classes.push(match[2])
+			} else if (match[3][0] === "[") {
+				var pair = /\[(.+?)(?:=("|'|)(.*?)\2)?\]/.exec(match[3])
+				cell.attrs[pair[1]] = pair[3] || (pair[2] ? "" : true)
+			}
+		}
+
+		return classes
+	}
+
+	function getVirtualChildren(args, hasAttrs) {
+		var children = hasAttrs ? args.slice(1) : args
+
+		if (children.length === 1 && isArray(children[0])) {
+			return children[0]
+		} else {
+			return children
+		}
+	}
+
+	function assignAttrs(target, attrs, classes) {
+		var classAttr = "class" in attrs ? "class" : "className"
+
+		for (var attrName in attrs) {
+			if (hasOwn.call(attrs, attrName)) {
+				if (attrName === classAttr &&
+						attrs[attrName] != null &&
+						attrs[attrName] !== "") {
+					classes.push(attrs[attrName])
+					// create key in correct iteration order
+					target[attrName] = ""
+				} else {
+					target[attrName] = attrs[attrName]
+				}
+			}
+		}
+
+		if (classes.length) target[classAttr] = classes.join(" ")
+	}
+
+	/**
+	 *
+	 * @param {Tag} The DOM node tag
+	 * @param {Object=[]} optional key-value pairs to be mapped to DOM attrs
+	 * @param {...mNode=[]} Zero or more Mithril child nodes. Can be an array,
+	 *                      or splat (optional)
+	 */
+	function m(tag, pairs) {
+		for (var args = [], i = 1; i < arguments.length; i++) {
+			args[i - 1] = arguments[i]
+		}
+
+		if (isObject(tag)) return parameterize(tag, args)
+
+		if (!isString(tag)) {
+			throw new Error("selector in m(selector, attrs, children) should " +
+				"be a string")
+		}
+
+		var hasAttrs = pairs != null && isObject(pairs) &&
+			!("tag" in pairs || "view" in pairs || "subtree" in pairs)
+
+		var attrs = hasAttrs ? pairs : {}
+		var cell = {
+			tag: "div",
+			attrs: {},
+			children: getVirtualChildren(args, hasAttrs)
+		}
+
+		assignAttrs(cell.attrs, attrs, parseTagAttrs(cell, tag))
+		return cell
+	}
+
+	function forEach(list, f) {
+		for (var i = 0; i < list.length && !f(list[i], i++);) {
+			// function called in condition
+		}
+	}
+
+	function forKeys(list, f) {
+		forEach(list, function (attrs, i) {
+			return (attrs = attrs && attrs.attrs) &&
+				attrs.key != null &&
+				f(attrs, i)
+		})
+	}
+	// This function was causing deopts in Chrome.
+	function dataToString(data) {
+		// data.toString() might throw or return null if data is the return
+		// value of Console.log in some versions of Firefox (behavior depends on
+		// version)
+		try {
+			if (data != null && data.toString() != null) return data
+		} catch (e) {
+			// silently ignore errors
+		}
+		return ""
+	}
+
+	// This function was causing deopts in Chrome.
+	function injectTextNode(parentElement, first, index, data) {
+		try {
+			insertNode(parentElement, first, index)
+			first.nodeValue = data
+		} catch (e) {
+			// IE erroneously throws error when appending an empty text node
+			// after a null
+		}
+	}
+
+	function flatten(list) {
+		// recursively flatten array
+		for (var i = 0; i < list.length; i++) {
+			if (isArray(list[i])) {
+				list = list.concat.apply([], list)
+				// check current index again and flatten until there are no more
+				// nested arrays at that index
+				i--
+			}
+		}
+		return list
+	}
+
+	function insertNode(parentElement, node, index) {
+		parentElement.insertBefore(node,
+			parentElement.childNodes[index] || null)
+	}
+
+	var DELETION = 1
+	var INSERTION = 2
+	var MOVE = 3
+
+	function handleKeysDiffer(data, existing, cached, parentElement) {
+		forKeys(data, function (key, i) {
+			existing[key = key.key] = existing[key] ? {
+				action: MOVE,
+				index: i,
+				from: existing[key].index,
+				element: cached.nodes[existing[key].index] ||
+					$document.createElement("div")
+			} : {action: INSERTION, index: i}
+		})
+
+		var actions = []
+		for (var prop in existing) if (hasOwn.call(existing, prop)) {
+			actions.push(existing[prop])
+		}
+
+		var changes = actions.sort(sortChanges)
+		var newCached = new Array(cached.length)
+
+		newCached.nodes = cached.nodes.slice()
+
+		forEach(changes, function (change) {
+			var index = change.index
+			if (change.action === DELETION) {
+				clear(cached[index].nodes, cached[index])
+				newCached.splice(index, 1)
+			}
+			if (change.action === INSERTION) {
+				var dummy = $document.createElement("div")
+				dummy.key = data[index].attrs.key
+				insertNode(parentElement, dummy, index)
+				newCached.splice(index, 0, {
+					attrs: {key: data[index].attrs.key},
+					nodes: [dummy]
+				})
+				newCached.nodes[index] = dummy
+			}
+
+			if (change.action === MOVE) {
+				var changeElement = change.element
+				var maybeChanged = parentElement.childNodes[index]
+				if (maybeChanged !== changeElement && changeElement !== null) {
+					parentElement.insertBefore(changeElement,
+						maybeChanged || null)
+				}
+				newCached[index] = cached[change.from]
+				newCached.nodes[index] = changeElement
+			}
+		})
+
+		return newCached
+	}
+
+	function diffKeys(data, cached, existing, parentElement) {
+		var keysDiffer = data.length !== cached.length
+
+		if (!keysDiffer) {
+			forKeys(data, function (attrs, i) {
+				var cachedCell = cached[i]
+				return keysDiffer = cachedCell &&
+					cachedCell.attrs &&
+					cachedCell.attrs.key !== attrs.key
+			})
+		}
+
+		if (keysDiffer) {
+			return handleKeysDiffer(data, existing, cached, parentElement)
+		} else {
+			return cached
+		}
+	}
+
+	function diffArray(data, cached, nodes) {
+		// diff the array itself
+
+		// update the list of DOM nodes by collecting the nodes from each item
+		forEach(data, function (_, i) {
+			if (cached[i] != null) nodes.push.apply(nodes, cached[i].nodes)
+		})
+		// remove items from the end of the array if the new array is shorter
+		// than the old one. if errors ever happen here, the issue is most
+		// likely a bug in the construction of the `cached` data structure
+		// somewhere earlier in the program
+		forEach(cached.nodes, function (node, i) {
+			if (node.parentNode != null && nodes.indexOf(node) < 0) {
+				clear([node], [cached[i]])
+			}
+		})
+
+		if (data.length < cached.length) cached.length = data.length
+		cached.nodes = nodes
+	}
+
+	function buildArrayKeys(data) {
+		var guid = 0
+		forKeys(data, function () {
+			forEach(data, function (attrs) {
+				if ((attrs = attrs && attrs.attrs) && attrs.key == null) {
+					attrs.key = "__mithril__" + guid++
+				}
+			})
+			return 1
+		})
+	}
+
+	function isDifferentEnough(data, cached, dataAttrKeys) {
+		if (data.tag !== cached.tag) return true
+
+		if (dataAttrKeys.sort().join() !==
+				Object.keys(cached.attrs).sort().join()) {
+			return true
+		}
+
+		if (data.attrs.id !== cached.attrs.id) {
+			return true
+		}
+
+		if (data.attrs.key !== cached.attrs.key) {
+			return true
+		}
+
+		if (m.redraw.strategy() === "all") {
+			return !cached.configContext || cached.configContext.retain !== true
+		}
+
+		if (m.redraw.strategy() === "diff") {
+			return cached.configContext && cached.configContext.retain === false
+		}
+
+		return false
+	}
+
+	function maybeRecreateObject(data, cached, dataAttrKeys) {
+		// if an element is different enough from the one in cache, recreate it
+		if (isDifferentEnough(data, cached, dataAttrKeys)) {
+			if (cached.nodes.length) clear(cached.nodes)
+
+			if (cached.configContext &&
+					isFunction(cached.configContext.onunload)) {
+				cached.configContext.onunload()
+			}
+
+			if (cached.controllers) {
+				forEach(cached.controllers, function (controller) {
+					if (controller.onunload) controller.onunload({preventDefault: noop});
+				});
+			}
+		}
+	}
+
+	function getObjectNamespace(data, namespace) {
+		if (data.attrs.xmlns) return data.attrs.xmlns
+		if (data.tag === "svg") return "http://www.w3.org/2000/svg"
+		if (data.tag === "math") return "http://www.w3.org/1998/Math/MathML"
+		return namespace
+	}
+
+	var pendingRequests = 0
+	m.startComputation = function () { pendingRequests++ }
+	m.endComputation = function () {
+		if (pendingRequests > 1) {
+			pendingRequests--
+		} else {
+			pendingRequests = 0
+			m.redraw()
+		}
+	}
+
+	function unloadCachedControllers(cached, views, controllers) {
+		if (controllers.length) {
+			cached.views = views
+			cached.controllers = controllers
+			forEach(controllers, function (controller) {
+				if (controller.onunload && controller.onunload.$old) {
+					controller.onunload = controller.onunload.$old
+				}
+
+				if (pendingRequests && controller.onunload) {
+					var onunload = controller.onunload
+					controller.onunload = noop
+					controller.onunload.$old = onunload
+				}
+			})
+		}
+	}
+
+	function scheduleConfigsToBeCalled(configs, data, node, isNew, cached) {
+		// schedule configs to be called. They are called after `build` finishes
+		// running
+		if (isFunction(data.attrs.config)) {
+			var context = cached.configContext = cached.configContext || {}
+
+			// bind
+			configs.push(function () {
+				return data.attrs.config.call(data, node, !isNew, context,
+					cached)
+			})
+		}
+	}
+
+	function buildUpdatedNode(
+		cached,
+		data,
+		editable,
+		hasKeys,
+		namespace,
+		views,
+		configs,
+		controllers
+	) {
+		var node = cached.nodes[0]
+
+		if (hasKeys) {
+			setAttributes(node, data.tag, data.attrs, cached.attrs, namespace)
+		}
+
+		cached.children = build(
+			node,
+			data.tag,
+			undefined,
+			undefined,
+			data.children,
+			cached.children,
+			false,
+			0,
+			data.attrs.contenteditable ? node : editable,
+			namespace,
+			configs
+		)
+
+		cached.nodes.intact = true
+
+		if (controllers.length) {
+			cached.views = views
+			cached.controllers = controllers
+		}
+
+		return node
+	}
+
+	function handleNonexistentNodes(data, parentElement, index) {
+		var nodes
+		if (data.$trusted) {
+			nodes = injectHTML(parentElement, index, data)
+		} else {
+			nodes = [$document.createTextNode(data)]
+			if (!parentElement.nodeName.match(voidElements)) {
+				insertNode(parentElement, nodes[0], index)
+			}
+		}
+
+		var cached
+
+		if (typeof data === "string" ||
+				typeof data === "number" ||
+				typeof data === "boolean") {
+			cached = new data.constructor(data)
+		} else {
+			cached = data
+		}
+
+		cached.nodes = nodes
+		return cached
+	}
+
+	function reattachNodes(
+		data,
+		cached,
+		parentElement,
+		editable,
+		index,
+		parentTag
+	) {
+		var nodes = cached.nodes
+		if (!editable || editable !== $document.activeElement) {
+			if (data.$trusted) {
+				clear(nodes, cached)
+				nodes = injectHTML(parentElement, index, data)
+			} else if (parentTag === "textarea") {
+				// <textarea> uses `value` instead of `nodeValue`.
+				parentElement.value = data
+			} else if (editable) {
+				// contenteditable nodes use `innerHTML` instead of `nodeValue`.
+				editable.innerHTML = data
+			} else {
+				// was a trusted string
+				if (nodes[0].nodeType === 1 || nodes.length > 1 ||
+						(nodes[0].nodeValue.trim &&
+							!nodes[0].nodeValue.trim())) {
+					clear(cached.nodes, cached)
+					nodes = [$document.createTextNode(data)]
+				}
+
+				injectTextNode(parentElement, nodes[0], index, data)
+			}
+		}
+		cached = new data.constructor(data)
+		cached.nodes = nodes
+		return cached
+	}
+
+	function handleTextNode(
+		cached,
+		data,
+		index,
+		parentElement,
+		shouldReattach,
+		editable,
+		parentTag
+	) {
+		if (!cached.nodes.length) {
+			return handleNonexistentNodes(data, parentElement, index)
+		} else if (cached.valueOf() !== data.valueOf() || shouldReattach) {
+			return reattachNodes(data, cached, parentElement, editable, index,
+				parentTag)
+		} else {
+			return (cached.nodes.intact = true, cached)
+		}
+	}
+
+	function getSubArrayCount(item) {
+		if (item.$trusted) {
+			// fix offset of next element if item was a trusted string w/ more
+			// than one html element
+			// the first clause in the regexp matches elements
+			// the second clause (after the pipe) matches text nodes
+			var match = item.match(/<[^\/]|\>\s*[^<]/g)
+			if (match != null) return match.length
+		} else if (isArray(item)) {
+			return item.length
+		}
+		return 1
+	}
+
+	function buildArray(
+		data,
+		cached,
+		parentElement,
+		index,
+		parentTag,
+		shouldReattach,
+		editable,
+		namespace,
+		configs
+	) {
+		data = flatten(data)
+		var nodes = []
+		var intact = cached.length === data.length
+		var subArrayCount = 0
+
+		// keys algorithm: sort elements without recreating them if keys are
+		// present
+		//
+		// 1) create a map of all existing keys, and mark all for deletion
+		// 2) add new keys to map and mark them for addition
+		// 3) if key exists in new list, change action from deletion to a move
+		// 4) for each key, handle its corresponding action as marked in
+		//    previous steps
+
+		var existing = {}
+		var shouldMaintainIdentities = false
+
+		forKeys(cached, function (attrs, i) {
+			shouldMaintainIdentities = true
+			existing[cached[i].attrs.key] = {action: DELETION, index: i}
+		})
+
+		buildArrayKeys(data)
+		if (shouldMaintainIdentities) {
+			cached = diffKeys(data, cached, existing, parentElement)
+		}
+		// end key algorithm
+
+		var cacheCount = 0
+		// faster explicitly written
+		for (var i = 0, len = data.length; i < len; i++) {
+			// diff each item in the array
+			var item = build(
+				parentElement,
+				parentTag,
+				cached,
+				index,
+				data[i],
+				cached[cacheCount],
+				shouldReattach,
+				index + subArrayCount || subArrayCount,
+				editable,
+				namespace,
+				configs)
+
+			if (item !== undefined) {
+				intact = intact && item.nodes.intact
+				subArrayCount += getSubArrayCount(item)
+				cached[cacheCount++] = item
+			}
+		}
+
+		if (!intact) diffArray(data, cached, nodes)
+		return cached
+	}
+
+	function makeCache(data, cached, index, parentIndex, parentCache) {
+		if (cached != null) {
+			if (type.call(cached) === type.call(data)) return cached
+
+			if (parentCache && parentCache.nodes) {
+				var offset = index - parentIndex
+				var end = offset + (isArray(data) ? data : cached.nodes).length
+				clear(
+					parentCache.nodes.slice(offset, end),
+					parentCache.slice(offset, end))
+			} else if (cached.nodes) {
+				clear(cached.nodes, cached)
+			}
+		}
+
+		cached = new data.constructor()
+		// if constructor creates a virtual dom element, use a blank object as
+		// the base cached node instead of copying the virtual el (#277)
+		if (cached.tag) cached = {}
+		cached.nodes = []
+		return cached
+	}
+
+	function constructNode(data, namespace) {
+		if (data.attrs.is) {
+			if (namespace == null) {
+				return $document.createElement(data.tag, data.attrs.is)
+			} else {
+				return $document.createElementNS(namespace, data.tag,
+					data.attrs.is)
+			}
+		} else if (namespace == null) {
+			return $document.createElement(data.tag)
+		} else {
+			return $document.createElementNS(namespace, data.tag)
+		}
+	}
+
+	function constructAttrs(data, node, namespace, hasKeys) {
+		if (hasKeys) {
+			return setAttributes(node, data.tag, data.attrs, {}, namespace)
+		} else {
+			return data.attrs
+		}
+	}
+
+	function constructChildren(
+		data,
+		node,
+		cached,
+		editable,
+		namespace,
+		configs
+	) {
+		if (data.children != null && data.children.length > 0) {
+			return build(
+				node,
+				data.tag,
+				undefined,
+				undefined,
+				data.children,
+				cached.children,
+				true,
+				0,
+				data.attrs.contenteditable ? node : editable,
+				namespace,
+				configs)
+		} else {
+			return data.children
+		}
+	}
+
+	function reconstructCached(
+		data,
+		attrs,
+		children,
+		node,
+		namespace,
+		views,
+		controllers
+	) {
+		var cached = {
+			tag: data.tag,
+			attrs: attrs,
+			children: children,
+			nodes: [node]
+		}
+
+		unloadCachedControllers(cached, views, controllers)
+
+		if (cached.children && !cached.children.nodes) {
+			cached.children.nodes = []
+		}
+
+		// edge case: setting value on <select> doesn't work before children
+		// exist, so set it again after children have been created
+		if (data.tag === "select" && "value" in data.attrs) {
+			setAttributes(node, data.tag, {value: data.attrs.value}, {},
+				namespace)
+		}
+
+		return cached
+	}
+
+	function getController(views, view, cachedControllers, controller) {
+		var controllerIndex
+
+		if (m.redraw.strategy() === "diff" && views) {
+			controllerIndex = views.indexOf(view)
+		} else {
+			controllerIndex = -1
+		}
+
+		if (controllerIndex > -1) {
+			return cachedControllers[controllerIndex]
+		} else if (isFunction(controller)) {
+			return new controller()
+		} else {
+			return {}
+		}
+	}
+
+	var unloaders = []
+
+	function updateLists(views, controllers, view, controller) {
+		if (controller.onunload != null) {
+			unloaders.push({
+				controller: controller,
+				handler: controller.onunload
+			})
+		}
+
+		views.push(view)
+		controllers.push(controller)
+	}
+
+	var forcing = false
+	function checkView(data, view, cached, cachedControllers, controllers, views) {
+		var controller = getController(cached.views, view, cachedControllers, data.controller)
+		var key = data && data.attrs && data.attrs.key
+		data = pendingRequests === 0 || forcing || cachedControllers && cachedControllers.indexOf(controller) > -1 ? data.view(controller) : {tag: "placeholder"}
+		if (data.subtree === "retain") return data;
+		data.attrs = data.attrs || {}
+		data.attrs.key = key
+		updateLists(views, controllers, view, controller)
+		return data
+	}
+
+	function markViews(data, cached, views, controllers) {
+		var cachedControllers = cached && cached.controllers
+
+		while (data.view != null) {
+			data = checkView(
+				data,
+				data.view.$original || data.view,
+				cached,
+				cachedControllers,
+				controllers,
+				views)
+		}
+
+		return data
+	}
+
+	function buildObject( // eslint-disable-line max-statements
+		data,
+		cached,
+		editable,
+		parentElement,
+		index,
+		shouldReattach,
+		namespace,
+		configs
+	) {
+		var views = []
+		var controllers = []
+
+		data = markViews(data, cached, views, controllers)
+
+		if (data.subtree === "retain") return cached
+
+		if (!data.tag && controllers.length) {
+			throw new Error("Component template must return a virtual " +
+				"element, not an array, string, etc.")
+		}
+
+		data.attrs = data.attrs || {}
+		cached.attrs = cached.attrs || {}
+
+		var dataAttrKeys = Object.keys(data.attrs)
+		var hasKeys = dataAttrKeys.length > ("key" in data.attrs ? 1 : 0)
+
+		maybeRecreateObject(data, cached, dataAttrKeys)
+
+		if (!isString(data.tag)) return
+
+		var isNew = cached.nodes.length === 0
+
+		namespace = getObjectNamespace(data, namespace)
+
+		var node
+		if (isNew) {
+			node = constructNode(data, namespace)
+			// set attributes first, then create children
+			var attrs = constructAttrs(data, node, namespace, hasKeys)
+
+			var children = constructChildren(data, node, cached, editable,
+				namespace, configs)
+
+			cached = reconstructCached(
+				data,
+				attrs,
+				children,
+				node,
+				namespace,
+				views,
+				controllers)
+		} else {
+			node = buildUpdatedNode(
+				cached,
+				data,
+				editable,
+				hasKeys,
+				namespace,
+				views,
+				configs,
+				controllers)
+		}
+
+		if (isNew || shouldReattach === true && node != null) {
+			insertNode(parentElement, node, index)
+		}
+
+		// The configs are called after `build` finishes running
+		scheduleConfigsToBeCalled(configs, data, node, isNew, cached)
+
+		return cached
+	}
+
+	function build(
+		parentElement,
+		parentTag,
+		parentCache,
+		parentIndex,
+		data,
+		cached,
+		shouldReattach,
+		index,
+		editable,
+		namespace,
+		configs
+	) {
+		/*
+		 * `build` is a recursive function that manages creation/diffing/removal
+		 * of DOM elements based on comparison between `data` and `cached` the
+		 * diff algorithm can be summarized as this:
+		 *
+		 * 1 - compare `data` and `cached`
+		 * 2 - if they are different, copy `data` to `cached` and update the DOM
+		 *     based on what the difference is
+		 * 3 - recursively apply this algorithm for every array and for the
+		 *     children of every virtual element
+		 *
+		 * The `cached` data structure is essentially the same as the previous
+		 * redraw's `data` data structure, with a few additions:
+		 * - `cached` always has a property called `nodes`, which is a list of
+		 *    DOM elements that correspond to the data represented by the
+		 *    respective virtual element
+		 * - in order to support attaching `nodes` as a property of `cached`,
+		 *    `cached` is *always* a non-primitive object, i.e. if the data was
+		 *    a string, then cached is a String instance. If data was `null` or
+		 *    `undefined`, cached is `new String("")`
+		 * - `cached also has a `configContext` property, which is the state
+		 *    storage object exposed by config(element, isInitialized, context)
+		 * - when `cached` is an Object, it represents a virtual element; when
+		 *    it's an Array, it represents a list of elements; when it's a
+		 *    String, Number or Boolean, it represents a text node
+		 *
+		 * `parentElement` is a DOM element used for W3C DOM API calls
+		 * `parentTag` is only used for handling a corner case for textarea
+		 * values
+		 * `parentCache` is used to remove nodes in some multi-node cases
+		 * `parentIndex` and `index` are used to figure out the offset of nodes.
+		 * They're artifacts from before arrays started being flattened and are
+		 * likely refactorable
+		 * `data` and `cached` are, respectively, the new and old nodes being
+		 * diffed
+		 * `shouldReattach` is a flag indicating whether a parent node was
+		 * recreated (if so, and if this node is reused, then this node must
+		 * reattach itself to the new parent)
+		 * `editable` is a flag that indicates whether an ancestor is
+		 * contenteditable
+		 * `namespace` indicates the closest HTML namespace as it cascades down
+		 * from an ancestor
+		 * `configs` is a list of config functions to run after the topmost
+		 * `build` call finishes running
+		 *
+		 * there's logic that relies on the assumption that null and undefined
+		 * data are equivalent to empty strings
+		 * - this prevents lifecycle surprises from procedural helpers that mix
+		 *   implicit and explicit return statements (e.g.
+		 *   function foo() {if (cond) return m("div")}
+		 * - it simplifies diffing code
+		 */
+		data = dataToString(data)
+		if (data.subtree === "retain") return cached
+		cached = makeCache(data, cached, index, parentIndex, parentCache)
+
+		if (isArray(data)) {
+			return buildArray(
+				data,
+				cached,
+				parentElement,
+				index,
+				parentTag,
+				shouldReattach,
+				editable,
+				namespace,
+				configs)
+		} else if (data != null && isObject(data)) {
+			return buildObject(
+				data,
+				cached,
+				editable,
+				parentElement,
+				index,
+				shouldReattach,
+				namespace,
+				configs)
+		} else if (!isFunction(data)) {
+			return handleTextNode(
+				cached,
+				data,
+				index,
+				parentElement,
+				shouldReattach,
+				editable,
+				parentTag)
+		} else {
+			return cached
+		}
+	}
+
+	function sortChanges(a, b) {
+		return a.action - b.action || a.index - b.index
+	}
+
+	function copyStyleAttrs(node, dataAttr, cachedAttr) {
+		for (var rule in dataAttr) if (hasOwn.call(dataAttr, rule)) {
+			if (cachedAttr == null || cachedAttr[rule] !== dataAttr[rule]) {
+				node.style[rule] = dataAttr[rule]
+			}
+		}
+
+		for (rule in cachedAttr) if (hasOwn.call(cachedAttr, rule)) {
+			if (!hasOwn.call(dataAttr, rule)) node.style[rule] = ""
+		}
+	}
+
+	function shouldUseSetAttribute(attrName) {
+		return attrName !== "list" &&
+			attrName !== "style" &&
+			attrName !== "form" &&
+			attrName !== "type" &&
+			attrName !== "width" &&
+			attrName !== "height"
+	}
+
+	function setSingleAttr(
+		node,
+		attrName,
+		dataAttr,
+		cachedAttr,
+		tag,
+		namespace
+	) {
+		if (attrName === "config" || attrName === "key") {
+			// `config` isn't a real attribute, so ignore it
+			return true
+		} else if (isFunction(dataAttr) && attrName.slice(0, 2) === "on") {
+			// hook event handlers to the auto-redrawing system
+			node[attrName] = autoredraw(dataAttr, node)
+		} else if (attrName === "style" && dataAttr != null &&
+				isObject(dataAttr)) {
+			// handle `style: {...}`
+			copyStyleAttrs(node, dataAttr, cachedAttr)
+		} else if (namespace != null) {
+			// handle SVG
+			if (attrName === "href") {
+				node.setAttributeNS("http://www.w3.org/1999/xlink",
+					"href", dataAttr)
+			} else {
+				node.setAttribute(
+					attrName === "className" ? "class" : attrName,
+					dataAttr)
+			}
+		} else if (attrName in node && shouldUseSetAttribute(attrName)) {
+			// handle cases that are properties (but ignore cases where we
+			// should use setAttribute instead)
+			//
+			// - list and form are typically used as strings, but are DOM
+			//   element references in js
+			//
+			// - when using CSS selectors (e.g. `m("[style='']")`), style is
+			//   used as a string, but it's an object in js
+			//
+			// #348 don't set the value if not needed - otherwise, cursor
+			// placement breaks in Chrome
+			try {
+				if (tag !== "input" || node[attrName] !== dataAttr) {
+					node[attrName] = dataAttr
+				}
+			} catch (e) {
+				node.setAttribute(attrName, dataAttr)
+			}
+		}
+		else node.setAttribute(attrName, dataAttr)
+	}
+
+	function trySetAttr(
+		node,
+		attrName,
+		dataAttr,
+		cachedAttr,
+		cachedAttrs,
+		tag,
+		namespace
+	) {
+		if (!(attrName in cachedAttrs) || (cachedAttr !== dataAttr)) {
+			cachedAttrs[attrName] = dataAttr
+			try {
+				return setSingleAttr(
+					node,
+					attrName,
+					dataAttr,
+					cachedAttr,
+					tag,
+					namespace)
+			} catch (e) {
+				// swallow IE's invalid argument errors to mimic HTML's
+				// fallback-to-doing-nothing-on-invalid-attributes behavior
+				if (e.message.indexOf("Invalid argument") < 0) throw e
+			}
+		} else if (attrName === "value" && tag === "input" &&
+				node.value !== dataAttr) {
+			// #348 dataAttr may not be a string, so use loose comparison
+			node.value = dataAttr
+		}
+	}
+
+	function setAttributes(node, tag, dataAttrs, cachedAttrs, namespace) {
+		for (var attrName in dataAttrs) if (hasOwn.call(dataAttrs, attrName)) {
+			if (trySetAttr(
+					node,
+					attrName,
+					dataAttrs[attrName],
+					cachedAttrs[attrName],
+					cachedAttrs,
+					tag,
+					namespace)) {
+				continue
+			}
+		}
+		return cachedAttrs
+	}
+
+	function clear(nodes, cached) {
+		for (var i = nodes.length - 1; i > -1; i--) {
+			if (nodes[i] && nodes[i].parentNode) {
+				try {
+					nodes[i].parentNode.removeChild(nodes[i])
+				} catch (e) {
+					/* eslint-disable max-len */
+					// ignore if this fails due to order of events (see
+					// http://stackoverflow.com/questions/21926083/failed-to-execute-removechild-on-node)
+					/* eslint-enable max-len */
+				}
+				cached = [].concat(cached)
+				if (cached[i]) unload(cached[i])
+			}
+		}
+		// release memory if nodes is an array. This check should fail if nodes
+		// is a NodeList (see loop above)
+		if (nodes.length) {
+			nodes.length = 0
+		}
+	}
+
+	function unload(cached) {
+		if (cached.configContext && isFunction(cached.configContext.onunload)) {
+			cached.configContext.onunload()
+			cached.configContext.onunload = null
+		}
+		if (cached.controllers) {
+			forEach(cached.controllers, function (controller) {
+				if (isFunction(controller.onunload)) {
+					controller.onunload({preventDefault: noop})
+				}
+			})
+		}
+		if (cached.children) {
+			if (isArray(cached.children)) forEach(cached.children, unload)
+			else if (cached.children.tag) unload(cached.children)
+		}
+	}
+
+	function appendTextFragment(parentElement, data) {
+		try {
+			parentElement.appendChild(
+				$document.createRange().createContextualFragment(data))
+		} catch (e) {
+			parentElement.insertAdjacentHTML("beforeend", data)
+		}
+	}
+
+	function injectHTML(parentElement, index, data) {
+		var nextSibling = parentElement.childNodes[index]
+		if (nextSibling) {
+			var isElement = nextSibling.nodeType !== 1
+			var placeholder = $document.createElement("span")
+			if (isElement) {
+				parentElement.insertBefore(placeholder, nextSibling || null)
+				placeholder.insertAdjacentHTML("beforebegin", data)
+				parentElement.removeChild(placeholder)
+			} else {
+				nextSibling.insertAdjacentHTML("beforebegin", data)
+			}
+		} else {
+			appendTextFragment(parentElement, data)
+		}
+
+		var nodes = []
+
+		while (parentElement.childNodes[index] !== nextSibling) {
+			nodes.push(parentElement.childNodes[index])
+			index++
+		}
+
+		return nodes
+	}
+
+	function autoredraw(callback, object) {
+		return function (e) {
+			e = e || event
+			m.redraw.strategy("diff")
+			m.startComputation()
+			try {
+				return callback.call(object, e)
+			} finally {
+				endFirstComputation()
+			}
+		}
+	}
+
+	var html
+	var documentNode = {
+		appendChild: function (node) {
+			if (html === undefined) html = $document.createElement("html")
+			if ($document.documentElement &&
+					$document.documentElement !== node) {
+				$document.replaceChild(node, $document.documentElement)
+			} else {
+				$document.appendChild(node)
+			}
+
+			this.childNodes = $document.childNodes
+		},
+
+		insertBefore: function (node) {
+			this.appendChild(node)
+		},
+
+		childNodes: []
+	}
+
+	var nodeCache = []
+	var cellCache = {}
+
+	m.render = function (root, cell, forceRecreation) {
+		if (!root) {
+			throw new Error("Ensure the DOM element being passed to " +
+				"m.route/m.mount/m.render is not undefined.")
+		}
+		var configs = []
+		var id = getCellCacheKey(root)
+		var isDocumentRoot = root === $document
+		var node
+
+		if (isDocumentRoot || root === $document.documentElement) {
+			node = documentNode
+		} else {
+			node = root
+		}
+
+		if (isDocumentRoot && cell.tag !== "html") {
+			cell = {tag: "html", attrs: {}, children: cell}
+		}
+
+		if (cellCache[id] === undefined) clear(node.childNodes)
+		if (forceRecreation === true) reset(root)
+
+		cellCache[id] = build(
+			node,
+			null,
+			undefined,
+			undefined,
+			cell,
+			cellCache[id],
+			false,
+			0,
+			null,
+			undefined,
+			configs)
+
+		forEach(configs, function (config) { config() })
+	}
+
+	function getCellCacheKey(element) {
+		var index = nodeCache.indexOf(element)
+		return index < 0 ? nodeCache.push(element) - 1 : index
+	}
+
+	m.trust = function (value) {
+		value = new String(value) // eslint-disable-line no-new-wrappers
+		value.$trusted = true
+		return value
+	}
+
+	function gettersetter(store) {
+		function prop() {
+			if (arguments.length) store = arguments[0]
+			return store
+		}
+
+		prop.toJSON = function () {
+			return store
+		}
+
+		return prop
+	}
+
+	m.prop = function (store) {
+		if ((store != null && isObject(store) || isFunction(store)) &&
+				isFunction(store.then)) {
+			return propify(store)
+		}
+
+		return gettersetter(store)
+	}
+
+	var roots = []
+	var components = []
+	var controllers = []
+	var lastRedrawId = null
+	var lastRedrawCallTime = 0
+	var computePreRedrawHook = null
+	var computePostRedrawHook = null
+	var topComponent
+	var FRAME_BUDGET = 16 // 60 frames per second = 1 call per 16 ms
+
+	function parameterize(component, args) {
+		function controller() {
+			/* eslint-disable no-invalid-this */
+			return (component.controller || noop).apply(this, args) || this
+			/* eslint-enable no-invalid-this */
+		}
+
+		if (component.controller) {
+			controller.prototype = component.controller.prototype
+		}
+
+		function view(ctrl) {
+			var currentArgs = [ctrl].concat(args)
+			for (var i = 1; i < arguments.length; i++) {
+				currentArgs.push(arguments[i])
+			}
+
+			return component.view.apply(component, currentArgs)
+		}
+
+		view.$original = component.view
+		var output = {controller: controller, view: view}
+		if (args[0] && args[0].key != null) output.attrs = {key: args[0].key}
+		return output
+	}
+
+	m.component = function (component) {
+		for (var args = [], i = 1; i < arguments.length; i++) {
+			args.push(arguments[i])
+		}
+
+		return parameterize(component, args)
+	}
+
+	function checkPrevented(component, root, index, isPrevented) {
+		if (!isPrevented) {
+			m.redraw.strategy("all")
+			m.startComputation()
+			roots[index] = root
+			var currentComponent
+
+			if (component) {
+				currentComponent = topComponent = component
+			} else {
+				currentComponent = topComponent = component = {controller: noop}
+			}
+
+			var controller = new (component.controller || noop)()
+
+			// controllers may call m.mount recursively (via m.route redirects,
+			// for example)
+			// this conditional ensures only the last recursive m.mount call is
+			// applied
+			if (currentComponent === topComponent) {
+				controllers[index] = controller
+				components[index] = component
+			}
+			endFirstComputation()
+			if (component === null) {
+				removeRootElement(root, index)
+			}
+			return controllers[index]
+		} else if (component == null) {
+			removeRootElement(root, index)
+		}
+	}
+
+	m.mount = m.module = function (root, component) {
+		if (!root) {
+			throw new Error("Please ensure the DOM element exists before " +
+				"rendering a template into it.")
+		}
+
+		var index = roots.indexOf(root)
+		if (index < 0) index = roots.length
+
+		var isPrevented = false
+		var event = {
+			preventDefault: function () {
+				isPrevented = true
+				computePreRedrawHook = computePostRedrawHook = null
+			}
+		}
+
+		forEach(unloaders, function (unloader) {
+			unloader.handler.call(unloader.controller, event)
+			unloader.controller.onunload = null
+		})
+
+		if (isPrevented) {
+			forEach(unloaders, function (unloader) {
+				unloader.controller.onunload = unloader.handler
+			})
+		} else {
+			unloaders = []
+		}
+
+		if (controllers[index] && isFunction(controllers[index].onunload)) {
+			controllers[index].onunload(event)
+		}
+
+		return checkPrevented(component, root, index, isPrevented)
+	}
+
+	function removeRootElement(root, index) {
+		roots.splice(index, 1)
+		controllers.splice(index, 1)
+		components.splice(index, 1)
+		reset(root)
+		nodeCache.splice(getCellCacheKey(root), 1)
+	}
+
+	var redrawing = false
+	m.redraw = function (force) {
+		if (redrawing) return
+		redrawing = true
+		if (force) forcing = true
+
+		try {
+			// lastRedrawId is a positive number if a second redraw is requested
+			// before the next animation frame
+			// lastRedrawID is null if it's the first redraw and not an event
+			// handler
+			if (lastRedrawId && !force) {
+				// when setTimeout: only reschedule redraw if time between now
+				// and previous redraw is bigger than a frame, otherwise keep
+				// currently scheduled timeout
+				// when rAF: always reschedule redraw
+				if ($requestAnimationFrame === global.requestAnimationFrame ||
+						new Date() - lastRedrawCallTime > FRAME_BUDGET) {
+					if (lastRedrawId > 0) $cancelAnimationFrame(lastRedrawId)
+					lastRedrawId = $requestAnimationFrame(redraw, FRAME_BUDGET)
+				}
+			} else {
+				redraw()
+				lastRedrawId = $requestAnimationFrame(function () {
+					lastRedrawId = null
+				}, FRAME_BUDGET)
+			}
+		} finally {
+			redrawing = forcing = false
+		}
+	}
+
+	m.redraw.strategy = m.prop()
+	function redraw() {
+		if (computePreRedrawHook) {
+			computePreRedrawHook()
+			computePreRedrawHook = null
+		}
+		forEach(roots, function (root, i) {
+			var component = components[i]
+			if (controllers[i]) {
+				var args = [controllers[i]]
+				m.render(root,
+					component.view ? component.view(controllers[i], args) : "")
+			}
+		})
+		// after rendering within a routed context, we need to scroll back to
+		// the top, and fetch the document title for history.pushState
+		if (computePostRedrawHook) {
+			computePostRedrawHook()
+			computePostRedrawHook = null
+		}
+		lastRedrawId = null
+		lastRedrawCallTime = new Date()
+		m.redraw.strategy("diff")
+	}
+
+	function endFirstComputation() {
+		if (m.redraw.strategy() === "none") {
+			pendingRequests--
+			m.redraw.strategy("diff")
+		} else {
+			m.endComputation()
+		}
+	}
+
+	m.withAttr = function (prop, withAttrCallback, callbackThis) {
+		return function (e) {
+			e = e || event
+			/* eslint-disable no-invalid-this */
+			var currentTarget = e.currentTarget || this
+			var _this = callbackThis || this
+			/* eslint-enable no-invalid-this */
+			var target = prop in currentTarget ?
+				currentTarget[prop] :
+				currentTarget.getAttribute(prop)
+			withAttrCallback.call(_this, target)
+		}
+	}
+
+	// routing
+	var modes = {pathname: "", hash: "#", search: "?"}
+	var redirect = noop
+	var isDefaultRoute = false
+	var routeParams, currentRoute
+
+	m.route = function (root, arg1, arg2, vdom) { // eslint-disable-line
+		// m.route()
+		if (arguments.length === 0) return currentRoute
+		// m.route(el, defaultRoute, routes)
+		if (arguments.length === 3 && isString(arg1)) {
+			redirect = function (source) {
+				var path = currentRoute = normalizeRoute(source)
+				if (!routeByValue(root, arg2, path)) {
+					if (isDefaultRoute) {
+						throw new Error("Ensure the default route matches " +
+							"one of the routes defined in m.route")
+					}
+
+					isDefaultRoute = true
+					m.route(arg1, true)
+					isDefaultRoute = false
+				}
+			}
+
+			var listener = m.route.mode === "hash" ?
+				"onhashchange" :
+				"onpopstate"
+
+			global[listener] = function () {
+				var path = $location[m.route.mode]
+				if (m.route.mode === "pathname") path += $location.search
+				if (currentRoute !== normalizeRoute(path)) redirect(path)
+			}
+
+			computePreRedrawHook = setScroll
+			global[listener]()
+
+			return
+		}
+
+		// config: m.route
+		if (root.addEventListener || root.attachEvent) {
+			var base = m.route.mode !== "pathname" ? $location.pathname : ""
+			root.href = base + modes[m.route.mode] + vdom.attrs.href
+			if (root.addEventListener) {
+				root.removeEventListener("click", routeUnobtrusive)
+				root.addEventListener("click", routeUnobtrusive)
+			} else {
+				root.detachEvent("onclick", routeUnobtrusive)
+				root.attachEvent("onclick", routeUnobtrusive)
+			}
+
+			return
+		}
+		// m.route(route, params, shouldReplaceHistoryEntry)
+		if (isString(root)) {
+			var oldRoute = currentRoute
+			currentRoute = root
+
+			var args = arg1 || {}
+			var queryIndex = currentRoute.indexOf("?")
+			var params
+
+			if (queryIndex > -1) {
+				params = parseQueryString(currentRoute.slice(queryIndex + 1))
+			} else {
+				params = {}
+			}
+
+			for (var i in args) if (hasOwn.call(args, i)) {
+				params[i] = args[i]
+			}
+
+			var querystring = buildQueryString(params)
+			var currentPath
+
+			if (queryIndex > -1) {
+				currentPath = currentRoute.slice(0, queryIndex)
+			} else {
+				currentPath = currentRoute
+			}
+
+			if (querystring) {
+				currentRoute = currentPath +
+					(currentPath.indexOf("?") === -1 ? "?" : "&") +
+					querystring
+			}
+
+			var replaceHistory =
+				(arguments.length === 3 ? arg2 : arg1) === true ||
+				oldRoute === root
+
+			if (global.history.pushState) {
+				var method = replaceHistory ? "replaceState" : "pushState"
+				computePreRedrawHook = setScroll
+				computePostRedrawHook = function () {
+					global.history[method](null, $document.title,
+						modes[m.route.mode] + currentRoute)
+				}
+				redirect(modes[m.route.mode] + currentRoute)
+			} else {
+				$location[m.route.mode] = currentRoute
+				redirect(modes[m.route.mode] + currentRoute)
+			}
+		}
+	}
+
+	m.route.param = function (key) {
+		if (!routeParams) {
+			throw new Error("You must call m.route(element, defaultRoute, " +
+				"routes) before calling m.route.param()")
+		}
+
+		if (!key) {
+			return routeParams
+		}
+
+		return routeParams[key]
+	}
+
+	m.route.mode = "search"
+
+	function normalizeRoute(route) {
+		return route.slice(modes[m.route.mode].length)
+	}
+
+	function routeByValue(root, router, path) {
+		routeParams = {}
+
+		var queryStart = path.indexOf("?")
+		if (queryStart !== -1) {
+			routeParams = parseQueryString(
+				path.substr(queryStart + 1, path.length))
+			path = path.substr(0, queryStart)
+		}
+
+		// Get all routes and check if there's
+		// an exact match for the current path
+		var keys = Object.keys(router)
+		var index = keys.indexOf(path)
+
+		if (index !== -1){
+			m.mount(root, router[keys [index]])
+			return true
+		}
+
+		for (var route in router) if (hasOwn.call(router, route)) {
+			if (route === path) {
+				m.mount(root, router[route])
+				return true
+			}
+
+			var matcher = new RegExp("^" + route
+				.replace(/:[^\/]+?\.{3}/g, "(.*?)")
+				.replace(/:[^\/]+/g, "([^\\/]+)") + "\/?$")
+
+			if (matcher.test(path)) {
+				/* eslint-disable no-loop-func */
+				path.replace(matcher, function () {
+					var keys = route.match(/:[^\/]+/g) || []
+					var values = [].slice.call(arguments, 1, -2)
+					forEach(keys, function (key, i) {
+						routeParams[key.replace(/:|\./g, "")] =
+							decodeURIComponent(values[i])
+					})
+					m.mount(root, router[route])
+				})
+				/* eslint-enable no-loop-func */
+				return true
+			}
+		}
+	}
+
+	function routeUnobtrusive(e) {
+		e = e || event
+		if (e.ctrlKey || e.metaKey || e.shiftKey || e.which === 2) return
+
+		if (e.preventDefault) {
+			e.preventDefault()
+		} else {
+			e.returnValue = false
+		}
+
+		var currentTarget = e.currentTarget || e.srcElement
+		var args
+
+		if (m.route.mode === "pathname" && currentTarget.search) {
+			args = parseQueryString(currentTarget.search.slice(1))
+		} else {
+			args = {}
+		}
+
+		while (currentTarget && !/a/i.test(currentTarget.nodeName)) {
+			currentTarget = currentTarget.parentNode
+		}
+
+		// clear pendingRequests because we want an immediate route change
+		pendingRequests = 0
+		m.route(currentTarget[m.route.mode]
+			.slice(modes[m.route.mode].length), args)
+	}
+
+	function setScroll() {
+		if (m.route.mode !== "hash" && $location.hash) {
+			$location.hash = $location.hash
+		} else {
+			global.scrollTo(0, 0)
+		}
+	}
+
+	function buildQueryString(object, prefix) {
+		var duplicates = {}
+		var str = []
+
+		for (var prop in object) if (hasOwn.call(object, prop)) {
+			var key = prefix ? prefix + "[" + prop + "]" : prop
+			var value = object[prop]
+
+			if (value === null) {
+				str.push(encodeURIComponent(key))
+			} else if (isObject(value)) {
+				str.push(buildQueryString(value, key))
+			} else if (isArray(value)) {
+				var keys = []
+				duplicates[key] = duplicates[key] || {}
+				/* eslint-disable no-loop-func */
+				forEach(value, function (item) {
+					/* eslint-enable no-loop-func */
+					if (!duplicates[key][item]) {
+						duplicates[key][item] = true
+						keys.push(encodeURIComponent(key) + "=" +
+							encodeURIComponent(item))
+					}
+				})
+				str.push(keys.join("&"))
+			} else if (value !== undefined) {
+				str.push(encodeURIComponent(key) + "=" +
+					encodeURIComponent(value))
+			}
+		}
+		return str.join("&")
+	}
+
+	function parseQueryString(str) {
+		if (str === "" || str == null) return {}
+		if (str.charAt(0) === "?") str = str.slice(1)
+
+		var pairs = str.split("&")
+		var params = {}
+
+		forEach(pairs, function (string) {
+			var pair = string.split("=")
+			var key = decodeURIComponent(pair[0])
+			var value = pair.length === 2 ? decodeURIComponent(pair[1]) : null
+			if (params[key] != null) {
+				if (!isArray(params[key])) params[key] = [params[key]]
+				params[key].push(value)
+			}
+			else params[key] = value
+		})
+
+		return params
+	}
+
+	m.route.buildQueryString = buildQueryString
+	m.route.parseQueryString = parseQueryString
+
+	function reset(root) {
+		var cacheKey = getCellCacheKey(root)
+		clear(root.childNodes, cellCache[cacheKey])
+		cellCache[cacheKey] = undefined
+	}
+
+	m.deferred = function () {
+		var deferred = new Deferred()
+		deferred.promise = propify(deferred.promise)
+		return deferred
+	}
+
+	function propify(promise, initialValue) {
+		var prop = m.prop(initialValue)
+		promise.then(prop)
+		prop.then = function (resolve, reject) {
+			return propify(promise.then(resolve, reject), initialValue)
+		}
+
+		prop.catch = prop.then.bind(null, null)
+		return prop
+	}
+	// Promiz.mithril.js | Zolmeister | MIT
+	// a modified version of Promiz.js, which does not conform to Promises/A+
+	// for two reasons:
+	//
+	// 1) `then` callbacks are called synchronously (because setTimeout is too
+	//    slow, and the setImmediate polyfill is too big
+	//
+	// 2) throwing subclasses of Error cause the error to be bubbled up instead
+	//    of triggering rejection (because the spec does not account for the
+	//    important use case of default browser error handling, i.e. message w/
+	//    line number)
+
+	var RESOLVING = 1
+	var REJECTING = 2
+	var RESOLVED = 3
+	var REJECTED = 4
+
+	function Deferred(onSuccess, onFailure) {
+		var self = this
+		var state = 0
+		var promiseValue = 0
+		var next = []
+
+		self.promise = {}
+
+		self.resolve = function (value) {
+			if (!state) {
+				promiseValue = value
+				state = RESOLVING
+
+				fire()
+			}
+
+			return self
+		}
+
+		self.reject = function (value) {
+			if (!state) {
+				promiseValue = value
+				state = REJECTING
+
+				fire()
+			}
+
+			return self
+		}
+
+		self.promise.then = function (onSuccess, onFailure) {
+			var deferred = new Deferred(onSuccess, onFailure)
+
+			if (state === RESOLVED) {
+				deferred.resolve(promiseValue)
+			} else if (state === REJECTED) {
+				deferred.reject(promiseValue)
+			} else {
+				next.push(deferred)
+			}
+
+			return deferred.promise
+		}
+
+		function finish(type) {
+			state = type || REJECTED
+			next.map(function (deferred) {
+				if (state === RESOLVED) {
+					deferred.resolve(promiseValue)
+				} else {
+					deferred.reject(promiseValue)
+				}
+			})
+		}
+
+		function thennable(then, success, failure, notThennable) {
+			if (((promiseValue != null && isObject(promiseValue)) ||
+					isFunction(promiseValue)) && isFunction(then)) {
+				try {
+					// count protects against abuse calls from spec checker
+					var count = 0
+					then.call(promiseValue, function (value) {
+						if (count++) return
+						promiseValue = value
+						success()
+					}, function (value) {
+						if (count++) return
+						promiseValue = value
+						failure()
+					})
+				} catch (e) {
+					m.deferred.onerror(e)
+					promiseValue = e
+					failure()
+				}
+			} else {
+				notThennable()
+			}
+		}
+
+		function fire() {
+			// check if it's a thenable
+			var then
+			try {
+				then = promiseValue && promiseValue.then
+			} catch (e) {
+				m.deferred.onerror(e)
+				promiseValue = e
+				state = REJECTING
+				return fire()
+			}
+
+			if (state === REJECTING) {
+				m.deferred.onerror(promiseValue)
+			}
+
+			thennable(then, function () {
+				state = RESOLVING
+				fire()
+			}, function () {
+				state = REJECTING
+				fire()
+			}, function () {
+				try {
+					if (state === RESOLVING && isFunction(onSuccess)) {
+						promiseValue = onSuccess(promiseValue)
+					} else if (state === REJECTING && isFunction(onFailure)) {
+						promiseValue = onFailure(promiseValue)
+						state = RESOLVING
+					}
+				} catch (e) {
+					m.deferred.onerror(e)
+					promiseValue = e
+					return finish()
+				}
+
+				if (promiseValue === self) {
+					promiseValue = TypeError()
+					finish()
+				} else {
+					thennable(then, function () {
+						finish(RESOLVED)
+					}, finish, function () {
+						finish(state === RESOLVING && RESOLVED)
+					})
+				}
+			})
+		}
+	}
+
+	m.deferred.onerror = function (e) {
+		if (type.call(e) === "[object Error]" &&
+				!e.constructor.toString().match(/ Error/)) {
+			pendingRequests = 0
+			throw e
+		}
+	}
+
+	m.sync = function (args) {
+		var deferred = m.deferred()
+		var outstanding = args.length
+		var results = new Array(outstanding)
+		var method = "resolve"
+
+		function synchronizer(pos, resolved) {
+			return function (value) {
+				results[pos] = value
+				if (!resolved) method = "reject"
+				if (--outstanding === 0) {
+					deferred.promise(results)
+					deferred[method](results)
+				}
+				return value
+			}
+		}
+
+		if (args.length > 0) {
+			forEach(args, function (arg, i) {
+				arg.then(synchronizer(i, true), synchronizer(i, false))
+			})
+		} else {
+			deferred.resolve([])
+		}
+
+		return deferred.promise
+	}
+
+	function identity(value) { return value }
+
+	function handleJsonp(options) {
+		var callbackKey = "mithril_callback_" +
+			new Date().getTime() + "_" +
+			(Math.round(Math.random() * 1e16)).toString(36)
+
+		var script = $document.createElement("script")
+
+		global[callbackKey] = function (resp) {
+			script.parentNode.removeChild(script)
+			options.onload({
+				type: "load",
+				target: {
+					responseText: resp
+				}
+			})
+			global[callbackKey] = undefined
+		}
+
+		script.onerror = function () {
+			script.parentNode.removeChild(script)
+
+			options.onerror({
+				type: "error",
+				target: {
+					status: 500,
+					responseText: JSON.stringify({
+						error: "Error making jsonp request"
+					})
+				}
+			})
+			global[callbackKey] = undefined
+
+			return false
+		}
+
+		script.onload = function () {
+			return false
+		}
+
+		script.src = options.url +
+			(options.url.indexOf("?") > 0 ? "&" : "?") +
+			(options.callbackKey ? options.callbackKey : "callback") +
+			"=" + callbackKey +
+			"&" + buildQueryString(options.data || {})
+
+		$document.body.appendChild(script)
+	}
+
+	function createXhr(options) {
+		var xhr = new global.XMLHttpRequest()
+		xhr.open(options.method, options.url, true, options.user,
+			options.password)
+
+		xhr.onreadystatechange = function () {
+			if (xhr.readyState === 4) {
+				if (xhr.status >= 200 && xhr.status < 300) {
+					options.onload({type: "load", target: xhr})
+				} else {
+					options.onerror({type: "error", target: xhr})
+				}
+			}
+		}
+
+		if (options.serialize === JSON.stringify &&
+				options.data &&
+				options.method !== "GET") {
+			xhr.setRequestHeader("Content-Type",
+				"application/json; charset=utf-8")
+		}
+
+		if (options.deserialize === JSON.parse) {
+			xhr.setRequestHeader("Accept", "application/json, text/*")
+		}
+
+		if (isFunction(options.config)) {
+			var maybeXhr = options.config(xhr, options)
+			if (maybeXhr != null) xhr = maybeXhr
+		}
+
+		var data = options.method === "GET" || !options.data ? "" : options.data
+
+		if (data && !isString(data) && data.constructor !== global.FormData) {
+			throw new Error("Request data should be either be a string or " +
+				"FormData. Check the `serialize` option in `m.request`")
+		}
+
+		xhr.send(data)
+		return xhr
+	}
+
+	function ajax(options) {
+		if (options.dataType && options.dataType.toLowerCase() === "jsonp") {
+			return handleJsonp(options)
+		} else {
+			return createXhr(options)
+		}
+	}
+
+	function bindData(options, data, serialize) {
+		if (options.method === "GET" && options.dataType !== "jsonp") {
+			var prefix = options.url.indexOf("?") < 0 ? "?" : "&"
+			var querystring = buildQueryString(data)
+			options.url += (querystring ? prefix + querystring : "")
+		} else {
+			options.data = serialize(data)
+		}
+	}
+
+	function parameterizeUrl(url, data) {
+		var tokens = url.match(/:[a-z]\w+/gi)
+
+		if (tokens && data) {
+			forEach(tokens, function (token) {
+				var key = token.slice(1)
+				url = url.replace(token, data[key])
+				delete data[key]
+			})
+		}
+
+		return url
+	}
+
+	m.request = function (options) {
+		if (options.background !== true) m.startComputation()
+		var deferred = new Deferred()
+		var isJSONP = options.dataType &&
+			options.dataType.toLowerCase() === "jsonp"
+
+		var serialize, deserialize, extract
+
+		if (isJSONP) {
+			serialize = options.serialize =
+			deserialize = options.deserialize = identity
+
+			extract = function (jsonp) { return jsonp.responseText }
+		} else {
+			serialize = options.serialize = options.serialize || JSON.stringify
+
+			deserialize = options.deserialize =
+				options.deserialize || JSON.parse
+			extract = options.extract || function (xhr) {
+				if (xhr.responseText.length || deserialize !== JSON.parse) {
+					return xhr.responseText
+				} else {
+					return null
+				}
+			}
+		}
+
+		options.method = (options.method || "GET").toUpperCase()
+		options.url = parameterizeUrl(options.url, options.data)
+		bindData(options, options.data, serialize)
+		options.onload = options.onerror = function (ev) {
+			try {
+				ev = ev || event
+				var response = deserialize(extract(ev.target, options))
+				if (ev.type === "load") {
+					if (options.unwrapSuccess) {
+						response = options.unwrapSuccess(response, ev.target)
+					}
+
+					if (isArray(response) && options.type) {
+						forEach(response, function (res, i) {
+							response[i] = new options.type(res)
+						})
+					} else if (options.type) {
+						response = new options.type(response)
+					}
+
+					deferred.resolve(response)
+				} else {
+					if (options.unwrapError) {
+						response = options.unwrapError(response, ev.target)
+					}
+
+					deferred.reject(response)
+				}
+			} catch (e) {
+				deferred.reject(e)
+			} finally {
+				if (options.background !== true) m.endComputation()
+			}
+		}
+
+		ajax(options)
+		deferred.promise = propify(deferred.promise, options.initialValue)
+		return deferred.promise
+	}
+
+	return m
+})
diff --git a/lib/vendor/system-csp-production.src.js b/lib/vendor/system-csp-production.src.js
new file mode 100644
index 000000000..0887780ca
--- /dev/null
+++ b/lib/vendor/system-csp-production.src.js
@@ -0,0 +1,4155 @@
+/*
+ * SystemJS v0.19.17
+ */
+(function() {
+function bootstrap() {(function(__global) {
+
+  var isWorker = typeof window == 'undefined' && typeof self != 'undefined' && typeof importScripts != 'undefined';
+  var isBrowser = typeof window != 'undefined' && typeof document != 'undefined';
+  var isWindows = typeof process != 'undefined' && typeof process.platform != 'undefined' && !!process.platform.match(/^win/);
+
+  if (!__global.console)
+    __global.console = { assert: function() {} };
+
+  // IE8 support
+  var indexOf = Array.prototype.indexOf || function(item) {
+    for (var i = 0, thisLen = this.length; i < thisLen; i++) {
+      if (this[i] === item) {
+        return i;
+      }
+    }
+    return -1;
+  };
+  
+  var defineProperty;
+  (function () {
+    try {
+      if (!!Object.defineProperty({}, 'a', {}))
+        defineProperty = Object.defineProperty;
+    }
+    catch (e) {
+      defineProperty = function(obj, prop, opt) {
+        try {
+          obj[prop] = opt.value || opt.get.call(obj);
+        }
+        catch(e) {}
+      }
+    }
+  })();
+
+  function addToError(err, msg) {
+    var newErr;
+    if (err instanceof Error) {
+      newErr = new Error(err.message, err.fileName, err.lineNumber);
+      if (isBrowser) {
+        newErr.message = err.message + '\n\t' + msg;
+        newErr.stack = err.stack;
+      }
+      else {
+        // node errors only look correct with the stack modified
+        newErr.message = err.message;
+        newErr.stack = err.stack + '\n\t' + msg;
+      }
+    }
+    else {
+      newErr = err + '\n\t' + msg;
+    }
+      
+    return newErr;
+  }
+
+  function __eval(source, debugName, context) {
+    try {
+      new Function(source).call(context);
+    }
+    catch(e) {
+      throw addToError(e, 'Evaluating ' + debugName);
+    }
+  }
+
+  var baseURI;
+  // environent baseURI detection
+  if (typeof document != 'undefined' && document.getElementsByTagName) {
+    baseURI = document.baseURI;
+
+    if (!baseURI) {
+      var bases = document.getElementsByTagName('base');
+      baseURI = bases[0] && bases[0].href || window.location.href;
+    }
+
+    // sanitize out the hash and querystring
+    baseURI = baseURI.split('#')[0].split('?')[0];
+    baseURI = baseURI.substr(0, baseURI.lastIndexOf('/') + 1);
+  }
+  else if (typeof process != 'undefined' && process.cwd) {
+    baseURI = 'file://' + (isWindows ? '/' : '') + process.cwd() + '/';
+    if (isWindows)
+      baseURI = baseURI.replace(/\\/g, '/');
+  }
+  else if (typeof location != 'undefined') {
+    baseURI = __global.location.href;
+  }
+  else {
+    throw new TypeError('No environment baseURI');
+  }
+
+  var URL = __global.URLPolyfill || __global.URL;
+/*
+*********************************************************************************************
+
+  Dynamic Module Loader Polyfill
+
+    - Implemented exactly to the former 2014-08-24 ES6 Specification Draft Rev 27, Section 15
+      http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#august_24_2014_draft_rev_27
+
+    - Functions are commented with their spec numbers, with spec differences commented.
+
+    - Spec bugs are commented in this code with links.
+
+    - Abstract functions have been combined where possible, and their associated functions
+      commented.
+
+    - Realm implementation is entirely omitted.
+
+*********************************************************************************************
+*/
+
+function Module() {}
+// http://www.ecma-international.org/ecma-262/6.0/#sec-@@tostringtag
+defineProperty(Module.prototype, 'toString', {
+  value: function() {
+    return 'Module';
+  }
+});
+function Loader(options) {
+  this._loader = {
+    loaderObj: this,
+    loads: [],
+    modules: {},
+    importPromises: {},
+    moduleRecords: {}
+  };
+
+  // 26.3.3.6
+  defineProperty(this, 'global', {
+    get: function() {
+      return __global;
+    }
+  });
+
+  // 26.3.3.13 realm not implemented
+}
+
+(function() {
+
+// Some Helpers
+
+// logs a linkset snapshot for debugging
+/* function snapshot(loader) {
+  console.log('---Snapshot---');
+  for (var i = 0; i < loader.loads.length; i++) {
+    var load = loader.loads[i];
+    var linkSetLog = '  ' + load.name + ' (' + load.status + '): ';
+
+    for (var j = 0; j < load.linkSets.length; j++) {
+      linkSetLog += '{' + logloads(load.linkSets[j].loads) + '} ';
+    }
+    console.log(linkSetLog);
+  }
+  console.log('');
+}
+function logloads(loads) {
+  var log = '';
+  for (var k = 0; k < loads.length; k++)
+    log += loads[k].name + (k != loads.length - 1 ? ' ' : '');
+  return log;
+} */
+
+
+/* function checkInvariants() {
+  // see https://bugs.ecmascript.org/show_bug.cgi?id=2603#c1
+
+  var loads = System._loader.loads;
+  var linkSets = [];
+
+  for (var i = 0; i < loads.length; i++) {
+    var load = loads[i];
+    console.assert(load.status == 'loading' || load.status == 'loaded', 'Each load is loading or loaded');
+
+    for (var j = 0; j < load.linkSets.length; j++) {
+      var linkSet = load.linkSets[j];
+
+      for (var k = 0; k < linkSet.loads.length; k++)
+        console.assert(loads.indexOf(linkSet.loads[k]) != -1, 'linkSet loads are a subset of loader loads');
+
+      if (linkSets.indexOf(linkSet) == -1)
+        linkSets.push(linkSet);
+    }
+  }
+
+  for (var i = 0; i < loads.length; i++) {
+    var load = loads[i];
+    for (var j = 0; j < linkSets.length; j++) {
+      var linkSet = linkSets[j];
+
+      if (linkSet.loads.indexOf(load) != -1)
+        console.assert(load.linkSets.indexOf(linkSet) != -1, 'linkSet contains load -> load contains linkSet');
+
+      if (load.linkSets.indexOf(linkSet) != -1)
+        console.assert(linkSet.loads.indexOf(load) != -1, 'load contains linkSet -> linkSet contains load');
+    }
+  }
+
+  for (var i = 0; i < linkSets.length; i++) {
+    var linkSet = linkSets[i];
+    for (var j = 0; j < linkSet.loads.length; j++) {
+      var load = linkSet.loads[j];
+
+      for (var k = 0; k < load.dependencies.length; k++) {
+        var depName = load.dependencies[k].value;
+        var depLoad;
+        for (var l = 0; l < loads.length; l++) {
+          if (loads[l].name != depName)
+            continue;
+          depLoad = loads[l];
+          break;
+        }
+
+        // loading records are allowed not to have their dependencies yet
+        // if (load.status != 'loading')
+        //  console.assert(depLoad, 'depLoad found');
+
+        // console.assert(linkSet.loads.indexOf(depLoad) != -1, 'linkset contains all dependencies');
+      }
+    }
+  }
+} */
+
+  // 15.2.3 - Runtime Semantics: Loader State
+
+  // 15.2.3.11
+  function createLoaderLoad(object) {
+    return {
+      // modules is an object for ES5 implementation
+      modules: {},
+      loads: [],
+      loaderObj: object
+    };
+  }
+
+  // 15.2.3.2 Load Records and LoadRequest Objects
+
+  // 15.2.3.2.1
+  function createLoad(name) {
+    return {
+      status: 'loading',
+      name: name,
+      linkSets: [],
+      dependencies: [],
+      metadata: {}
+    };
+  }
+
+  // 15.2.3.2.2 createLoadRequestObject, absorbed into calling functions
+
+  // 15.2.4
+
+  // 15.2.4.1
+  function loadModule(loader, name, options) {
+    return new Promise(asyncStartLoadPartwayThrough({
+      step: options.address ? 'fetch' : 'locate',
+      loader: loader,
+      moduleName: name,
+      // allow metadata for import https://bugs.ecmascript.org/show_bug.cgi?id=3091
+      moduleMetadata: options && options.metadata || {},
+      moduleSource: options.source,
+      moduleAddress: options.address
+    }));
+  }
+
+  // 15.2.4.2
+  function requestLoad(loader, request, refererName, refererAddress) {
+    // 15.2.4.2.1 CallNormalize
+    return new Promise(function(resolve, reject) {
+      resolve(loader.loaderObj.normalize(request, refererName, refererAddress));
+    })
+    // 15.2.4.2.2 GetOrCreateLoad
+    .then(function(name) {
+      var load;
+      if (loader.modules[name]) {
+        load = createLoad(name);
+        load.status = 'linked';
+        // https://bugs.ecmascript.org/show_bug.cgi?id=2795
+        load.module = loader.modules[name];
+        return load;
+      }
+
+      for (var i = 0, l = loader.loads.length; i < l; i++) {
+        load = loader.loads[i];
+        if (load.name != name)
+          continue;
+        console.assert(load.status == 'loading' || load.status == 'loaded', 'loading or loaded');
+        return load;
+      }
+
+      load = createLoad(name);
+      loader.loads.push(load);
+
+      proceedToLocate(loader, load);
+
+      return load;
+    });
+  }
+
+  // 15.2.4.3
+  function proceedToLocate(loader, load) {
+    proceedToFetch(loader, load,
+      Promise.resolve()
+      // 15.2.4.3.1 CallLocate
+      .then(function() {
+        return loader.loaderObj.locate({ name: load.name, metadata: load.metadata });
+      })
+    );
+  }
+
+  // 15.2.4.4
+  function proceedToFetch(loader, load, p) {
+    proceedToTranslate(loader, load,
+      p
+      // 15.2.4.4.1 CallFetch
+      .then(function(address) {
+        // adjusted, see https://bugs.ecmascript.org/show_bug.cgi?id=2602
+        if (load.status != 'loading')
+          return;
+        load.address = address;
+
+        return loader.loaderObj.fetch({ name: load.name, metadata: load.metadata, address: address });
+      })
+    );
+  }
+
+  var anonCnt = 0;
+
+  // 15.2.4.5
+  function proceedToTranslate(loader, load, p) {
+    p
+    // 15.2.4.5.1 CallTranslate
+    .then(function(source) {
+      if (load.status != 'loading')
+        return;
+
+      return Promise.resolve(loader.loaderObj.translate({ name: load.name, metadata: load.metadata, address: load.address, source: source }))
+
+      // 15.2.4.5.2 CallInstantiate
+      .then(function(source) {
+        load.source = source;
+        return loader.loaderObj.instantiate({ name: load.name, metadata: load.metadata, address: load.address, source: source });
+      })
+
+      // 15.2.4.5.3 InstantiateSucceeded
+      .then(function(instantiateResult) {
+        if (instantiateResult === undefined) {
+          load.address = load.address || '<Anonymous Module ' + ++anonCnt + '>';
+
+          // instead of load.kind, use load.isDeclarative
+          load.isDeclarative = true;
+          return transpile.call(loader.loaderObj, load)
+          .then(function(transpiled) {
+            // Hijack System.register to set declare function
+            var curSystem = __global.System;
+            var curRegister = curSystem.register;
+            curSystem.register = function(name, deps, declare) {
+              if (typeof name != 'string') {
+                declare = deps;
+                deps = name;
+              }
+              // store the registered declaration as load.declare
+              // store the deps as load.deps
+              load.declare = declare;
+              load.depsList = deps;
+            }
+            // empty {} context is closest to undefined 'this' we can get
+            __eval(transpiled, load.address, {});
+            curSystem.register = curRegister;
+          });
+        }
+        else if (typeof instantiateResult == 'object') {
+          load.depsList = instantiateResult.deps || [];
+          load.execute = instantiateResult.execute;
+          load.isDeclarative = false;
+        }
+        else
+          throw TypeError('Invalid instantiate return value');
+      })
+      // 15.2.4.6 ProcessLoadDependencies
+      .then(function() {
+        load.dependencies = [];
+        var depsList = load.depsList;
+
+        var loadPromises = [];
+        for (var i = 0, l = depsList.length; i < l; i++) (function(request, index) {
+          loadPromises.push(
+            requestLoad(loader, request, load.name, load.address)
+
+            // 15.2.4.6.1 AddDependencyLoad (load is parentLoad)
+            .then(function(depLoad) {
+
+              // adjusted from spec to maintain dependency order
+              // this is due to the System.register internal implementation needs
+              load.dependencies[index] = {
+                key: request,
+                value: depLoad.name
+              };
+
+              if (depLoad.status != 'linked') {
+                var linkSets = load.linkSets.concat([]);
+                for (var i = 0, l = linkSets.length; i < l; i++)
+                  addLoadToLinkSet(linkSets[i], depLoad);
+              }
+
+              // console.log('AddDependencyLoad ' + depLoad.name + ' for ' + load.name);
+              // snapshot(loader);
+            })
+          );
+        })(depsList[i], i);
+
+        return Promise.all(loadPromises);
+      })
+
+      // 15.2.4.6.2 LoadSucceeded
+      .then(function() {
+        // console.log('LoadSucceeded ' + load.name);
+        // snapshot(loader);
+
+        console.assert(load.status == 'loading', 'is loading');
+
+        load.status = 'loaded';
+
+        var linkSets = load.linkSets.concat([]);
+        for (var i = 0, l = linkSets.length; i < l; i++)
+          updateLinkSetOnLoad(linkSets[i], load);
+      });
+    })
+    // 15.2.4.5.4 LoadFailed
+    ['catch'](function(exc) {
+      load.status = 'failed';
+      load.exception = exc;
+
+      var linkSets = load.linkSets.concat([]);
+      for (var i = 0, l = linkSets.length; i < l; i++) {
+        linkSetFailed(linkSets[i], load, exc);
+      }
+
+      console.assert(load.linkSets.length == 0, 'linkSets not removed');
+    });
+  }
+
+  // 15.2.4.7 PromiseOfStartLoadPartwayThrough absorbed into calling functions
+
+  // 15.2.4.7.1
+  function asyncStartLoadPartwayThrough(stepState) {
+    return function(resolve, reject) {
+      var loader = stepState.loader;
+      var name = stepState.moduleName;
+      var step = stepState.step;
+
+      if (loader.modules[name])
+        throw new TypeError('"' + name + '" already exists in the module table');
+
+      // adjusted to pick up existing loads
+      var existingLoad;
+      for (var i = 0, l = loader.loads.length; i < l; i++) {
+        if (loader.loads[i].name == name) {
+          existingLoad = loader.loads[i];
+
+          if (step == 'translate' && !existingLoad.source) {
+            existingLoad.address = stepState.moduleAddress;
+            proceedToTranslate(loader, existingLoad, Promise.resolve(stepState.moduleSource));
+          }
+
+          // a primary load -> use that existing linkset if it is for the direct load here
+          // otherwise create a new linkset unit
+          if (existingLoad.linkSets.length && existingLoad.linkSets[0].loads[0].name == existingLoad.name)
+            return existingLoad.linkSets[0].done.then(function() {
+              resolve(existingLoad);
+            });
+        }
+      }
+
+      var load = existingLoad || createLoad(name);
+
+      load.metadata = stepState.moduleMetadata;
+
+      var linkSet = createLinkSet(loader, load);
+
+      loader.loads.push(load);
+
+      resolve(linkSet.done);
+
+      if (step == 'locate')
+        proceedToLocate(loader, load);
+
+      else if (step == 'fetch')
+        proceedToFetch(loader, load, Promise.resolve(stepState.moduleAddress));
+
+      else {
+        console.assert(step == 'translate', 'translate step');
+        load.address = stepState.moduleAddress;
+        proceedToTranslate(loader, load, Promise.resolve(stepState.moduleSource));
+      }
+    }
+  }
+
+  // Declarative linking functions run through alternative implementation:
+  // 15.2.5.1.1 CreateModuleLinkageRecord not implemented
+  // 15.2.5.1.2 LookupExport not implemented
+  // 15.2.5.1.3 LookupModuleDependency not implemented
+
+  // 15.2.5.2.1
+  function createLinkSet(loader, startingLoad) {
+    var linkSet = {
+      loader: loader,
+      loads: [],
+      startingLoad: startingLoad, // added see spec bug https://bugs.ecmascript.org/show_bug.cgi?id=2995
+      loadingCount: 0
+    };
+    linkSet.done = new Promise(function(resolve, reject) {
+      linkSet.resolve = resolve;
+      linkSet.reject = reject;
+    });
+    addLoadToLinkSet(linkSet, startingLoad);
+    return linkSet;
+  }
+  // 15.2.5.2.2
+  function addLoadToLinkSet(linkSet, load) {
+    if (load.status == 'failed')
+      return;
+
+    console.assert(load.status == 'loading' || load.status == 'loaded', 'loading or loaded on link set');
+
+    for (var i = 0, l = linkSet.loads.length; i < l; i++)
+      if (linkSet.loads[i] == load)
+        return;
+
+    linkSet.loads.push(load);
+    load.linkSets.push(linkSet);
+
+    // adjustment, see https://bugs.ecmascript.org/show_bug.cgi?id=2603
+    if (load.status != 'loaded') {
+      linkSet.loadingCount++;
+    }
+
+    var loader = linkSet.loader;
+
+    for (var i = 0, l = load.dependencies.length; i < l; i++) {
+      if (!load.dependencies[i])
+        continue;
+
+      var name = load.dependencies[i].value;
+
+      if (loader.modules[name])
+        continue;
+
+      for (var j = 0, d = loader.loads.length; j < d; j++) {
+        if (loader.loads[j].name != name)
+          continue;
+
+        addLoadToLinkSet(linkSet, loader.loads[j]);
+        break;
+      }
+    }
+    // console.log('add to linkset ' + load.name);
+    // snapshot(linkSet.loader);
+  }
+
+  // linking errors can be generic or load-specific
+  // this is necessary for debugging info
+  function doLink(linkSet) {
+    var error = false;
+    try {
+      link(linkSet, function(load, exc) {
+        linkSetFailed(linkSet, load, exc);
+        error = true;
+      });
+    }
+    catch(e) {
+      linkSetFailed(linkSet, null, e);
+      error = true;
+    }
+    return error;
+  }
+
+  // 15.2.5.2.3
+  function updateLinkSetOnLoad(linkSet, load) {
+    // console.log('update linkset on load ' + load.name);
+    // snapshot(linkSet.loader);
+
+    console.assert(load.status == 'loaded' || load.status == 'linked', 'loaded or linked');
+
+    linkSet.loadingCount--;
+
+    if (linkSet.loadingCount > 0)
+      return;
+
+    // adjusted for spec bug https://bugs.ecmascript.org/show_bug.cgi?id=2995
+    var startingLoad = linkSet.startingLoad;
+
+    // non-executing link variation for loader tracing
+    // on the server. Not in spec.
+    /***/
+    if (linkSet.loader.loaderObj.execute === false) {
+      var loads = [].concat(linkSet.loads);
+      for (var i = 0, l = loads.length; i < l; i++) {
+        var load = loads[i];
+        load.module = !load.isDeclarative ? {
+          module: _newModule({})
+        } : {
+          name: load.name,
+          module: _newModule({}),
+          evaluated: true
+        };
+        load.status = 'linked';
+        finishLoad(linkSet.loader, load);
+      }
+      return linkSet.resolve(startingLoad);
+    }
+    /***/
+
+    var abrupt = doLink(linkSet);
+
+    if (abrupt)
+      return;
+
+    console.assert(linkSet.loads.length == 0, 'loads cleared');
+
+    linkSet.resolve(startingLoad);
+  }
+
+  // 15.2.5.2.4
+  function linkSetFailed(linkSet, load, exc) {
+    var loader = linkSet.loader;
+    var requests;
+
+    checkError: 
+    if (load) {
+      if (linkSet.loads[0].name == load.name) {
+        exc = addToError(exc, 'Error loading ' + load.name);
+      }
+      else {
+        for (var i = 0; i < linkSet.loads.length; i++) {
+          var pLoad = linkSet.loads[i];
+          for (var j = 0; j < pLoad.dependencies.length; j++) {
+            var dep = pLoad.dependencies[j];
+            if (dep.value == load.name) {
+              exc = addToError(exc, 'Error loading ' + load.name + ' as "' + dep.key + '" from ' + pLoad.name);
+              break checkError;
+            }
+          }
+        }
+        exc = addToError(exc, 'Error loading ' + load.name + ' from ' + linkSet.loads[0].name);
+      }
+    }
+    else {
+      exc = addToError(exc, 'Error linking ' + linkSet.loads[0].name);
+    }
+
+
+    var loads = linkSet.loads.concat([]);
+    for (var i = 0, l = loads.length; i < l; i++) {
+      var load = loads[i];
+
+      // store all failed load records
+      loader.loaderObj.failed = loader.loaderObj.failed || [];
+      if (indexOf.call(loader.loaderObj.failed, load) == -1)
+        loader.loaderObj.failed.push(load);
+
+      var linkIndex = indexOf.call(load.linkSets, linkSet);
+      console.assert(linkIndex != -1, 'link not present');
+      load.linkSets.splice(linkIndex, 1);
+      if (load.linkSets.length == 0) {
+        var globalLoadsIndex = indexOf.call(linkSet.loader.loads, load);
+        if (globalLoadsIndex != -1)
+          linkSet.loader.loads.splice(globalLoadsIndex, 1);
+      }
+    }
+    linkSet.reject(exc);
+  }
+
+  // 15.2.5.2.5
+  function finishLoad(loader, load) {
+    // add to global trace if tracing
+    if (loader.loaderObj.trace) {
+      if (!loader.loaderObj.loads)
+        loader.loaderObj.loads = {};
+      var depMap = {};
+      load.dependencies.forEach(function(dep) {
+        depMap[dep.key] = dep.value;
+      });
+      loader.loaderObj.loads[load.name] = {
+        name: load.name,
+        deps: load.dependencies.map(function(dep){ return dep.key }),
+        depMap: depMap,
+        address: load.address,
+        metadata: load.metadata,
+        source: load.source,
+        kind: load.isDeclarative ? 'declarative' : 'dynamic'
+      };
+    }
+    // if not anonymous, add to the module table
+    if (load.name) {
+      console.assert(!loader.modules[load.name], 'load not in module table');
+      loader.modules[load.name] = load.module;
+    }
+    var loadIndex = indexOf.call(loader.loads, load);
+    if (loadIndex != -1)
+      loader.loads.splice(loadIndex, 1);
+    for (var i = 0, l = load.linkSets.length; i < l; i++) {
+      loadIndex = indexOf.call(load.linkSets[i].loads, load);
+      if (loadIndex != -1)
+        load.linkSets[i].loads.splice(loadIndex, 1);
+    }
+    load.linkSets.splice(0, load.linkSets.length);
+  }
+
+  function doDynamicExecute(linkSet, load, linkError) {
+    try {
+      var module = load.execute();
+    }
+    catch(e) {
+      linkError(load, e);
+      return;
+    }
+    if (!module || !(module instanceof Module))
+      linkError(load, new TypeError('Execution must define a Module instance'));
+    else
+      return module;
+  }
+
+  // 26.3 Loader
+
+  // 26.3.1.1
+  // defined at top
+
+  // importPromises adds ability to import a module twice without error - https://bugs.ecmascript.org/show_bug.cgi?id=2601
+  function createImportPromise(loader, name, promise) {
+    var importPromises = loader._loader.importPromises;
+    return importPromises[name] = promise.then(function(m) {
+      importPromises[name] = undefined;
+      return m;
+    }, function(e) {
+      importPromises[name] = undefined;
+      throw e;
+    });
+  }
+
+  Loader.prototype = {
+    // 26.3.3.1
+    constructor: Loader,
+    // 26.3.3.2
+    define: function(name, source, options) {
+      // check if already defined
+      if (this._loader.importPromises[name])
+        throw new TypeError('Module is already loading.');
+      return createImportPromise(this, name, new Promise(asyncStartLoadPartwayThrough({
+        step: 'translate',
+        loader: this._loader,
+        moduleName: name,
+        moduleMetadata: options && options.metadata || {},
+        moduleSource: source,
+        moduleAddress: options && options.address
+      })));
+    },
+    // 26.3.3.3
+    'delete': function(name) {
+      var loader = this._loader;
+      delete loader.importPromises[name];
+      delete loader.moduleRecords[name];
+      return loader.modules[name] ? delete loader.modules[name] : false;
+    },
+    // 26.3.3.4 entries not implemented
+    // 26.3.3.5
+    get: function(key) {
+      if (!this._loader.modules[key])
+        return;
+      doEnsureEvaluated(this._loader.modules[key], [], this);
+      return this._loader.modules[key].module;
+    },
+    // 26.3.3.7
+    has: function(name) {
+      return !!this._loader.modules[name];
+    },
+    // 26.3.3.8
+    'import': function(name, parentName, parentAddress) {
+      if (typeof parentName == 'object')
+        parentName = parentName.name;
+
+      // run normalize first
+      var loaderObj = this;
+
+      // added, see https://bugs.ecmascript.org/show_bug.cgi?id=2659
+      return Promise.resolve(loaderObj.normalize(name, parentName))
+      .then(function(name) {
+        var loader = loaderObj._loader;
+
+        if (loader.modules[name]) {
+          doEnsureEvaluated(loader.modules[name], [], loader._loader);
+          return loader.modules[name].module;
+        }
+
+        return loader.importPromises[name] || createImportPromise(loaderObj, name,
+          loadModule(loader, name, {})
+          .then(function(load) {
+            delete loader.importPromises[name];
+            return evaluateLoadedModule(loader, load);
+          }));
+      });
+    },
+    // 26.3.3.9 keys not implemented
+    // 26.3.3.10
+    load: function(name) {
+      var loader = this._loader;
+      if (loader.modules[name])
+        return Promise.resolve();
+      return loader.importPromises[name] || createImportPromise(this, name, new Promise(asyncStartLoadPartwayThrough({
+        step: 'locate',
+        loader: loader,
+        moduleName: name,
+        moduleMetadata: {},
+        moduleSource: undefined,
+        moduleAddress: undefined
+      }))
+      .then(function() {
+        delete loader.importPromises[name];
+      }));
+    },
+    // 26.3.3.11
+    module: function(source, options) {
+      var load = createLoad();
+      load.address = options && options.address;
+      var linkSet = createLinkSet(this._loader, load);
+      var sourcePromise = Promise.resolve(source);
+      var loader = this._loader;
+      var p = linkSet.done.then(function() {
+        return evaluateLoadedModule(loader, load);
+      });
+      proceedToTranslate(loader, load, sourcePromise);
+      return p;
+    },
+    // 26.3.3.12
+    newModule: function (obj) {
+      if (typeof obj != 'object')
+        throw new TypeError('Expected object');
+
+      var m = new Module();
+
+      var pNames = [];
+      if (Object.getOwnPropertyNames && obj != null)
+        pNames = Object.getOwnPropertyNames(obj);
+      else
+        for (var key in obj)
+          pNames.push(key);
+
+      for (var i = 0; i < pNames.length; i++) (function(key) {
+        defineProperty(m, key, {
+          configurable: false,
+          enumerable: true,
+          get: function () {
+            return obj[key];
+          }
+        });
+      })(pNames[i]);
+
+      return m;
+    },
+    // 26.3.3.14
+    set: function(name, module) {
+      if (!(module instanceof Module))
+        throw new TypeError('Loader.set(' + name + ', module) must be a module');
+      this._loader.modules[name] = {
+        module: module
+      };
+    },
+    // 26.3.3.15 values not implemented
+    // 26.3.3.16 @@iterator not implemented
+    // 26.3.3.17 @@toStringTag not implemented
+
+    // 26.3.3.18.1
+    normalize: function(name, referrerName, referrerAddress) {
+      return name;
+    },
+    // 26.3.3.18.2
+    locate: function(load) {
+      return load.name;
+    },
+    // 26.3.3.18.3
+    fetch: function(load) {
+    },
+    // 26.3.3.18.4
+    translate: function(load) {
+      return load.source;
+    },
+    // 26.3.3.18.5
+    instantiate: function(load) {
+    }
+  };
+
+  var _newModule = Loader.prototype.newModule;
+/*
+ * ES6 Module Declarative Linking Code - Dev Build Only
+ */
+  function link(linkSet, linkError) {
+
+    var loader = linkSet.loader;
+
+    if (!linkSet.loads.length)
+      return;
+
+    var loads = linkSet.loads.concat([]);
+
+    for (var i = 0; i < loads.length; i++) {
+      var load = loads[i];
+
+      var module = doDynamicExecute(linkSet, load, linkError);
+      if (!module)
+        return;
+      load.module = {
+        name: load.name,
+        module: module
+      };
+      load.status = 'linked';
+
+      finishLoad(loader, load);
+    }
+  }
+
+  function evaluateLoadedModule(loader, load) {
+    console.assert(load.status == 'linked', 'is linked ' + load.name);
+    return load.module.module;
+  }
+
+  function doEnsureEvaluated() {}
+
+  function transpile() {
+    throw new TypeError('ES6 transpilation is only provided in the dev module loader build.');
+  }
+})();/*
+*********************************************************************************************
+
+  System Loader Implementation
+
+    - Implemented to https://github.com/jorendorff/js-loaders/blob/master/browser-loader.js
+
+    - <script type="module"> supported
+
+*********************************************************************************************
+*/
+
+var System;
+
+function SystemLoader() {
+  Loader.call(this);
+  this.paths = {};
+}
+
+// NB no specification provided for System.paths, used ideas discussed in https://github.com/jorendorff/js-loaders/issues/25
+function applyPaths(paths, name) {
+  // most specific (most number of slashes in path) match wins
+  var pathMatch = '', wildcard, maxWildcardPrefixLen = 0;
+
+  // check to see if we have a paths entry
+  for (var p in paths) {
+    var pathParts = p.split('*');
+    if (pathParts.length > 2)
+      throw new TypeError('Only one wildcard in a path is permitted');
+
+    // exact path match
+    if (pathParts.length == 1) {
+      if (name == p)
+        return paths[p];
+      
+      // support trailing / in paths rules
+      else if (name.substr(0, p.length - 1) == p.substr(0, p.length - 1) && (name.length < p.length || name[p.length - 1] == p[p.length - 1]) && paths[p][paths[p].length - 1] == '/')
+        return paths[p].substr(0, paths[p].length - 1) + (name.length > p.length ? '/' + name.substr(p.length) : '');
+    }
+    // wildcard path match
+    else {
+      var wildcardPrefixLen = pathParts[0].length;
+      if (wildcardPrefixLen >= maxWildcardPrefixLen &&
+          name.substr(0, pathParts[0].length) == pathParts[0] &&
+          name.substr(name.length - pathParts[1].length) == pathParts[1]) {
+            maxWildcardPrefixLen = wildcardPrefixLen;
+            pathMatch = p;
+            wildcard = name.substr(pathParts[0].length, name.length - pathParts[1].length - pathParts[0].length);
+          }
+    }
+  }
+
+  var outPath = paths[pathMatch];
+  if (typeof wildcard == 'string')
+    outPath = outPath.replace('*', wildcard);
+
+  return outPath;
+}
+
+// inline Object.create-style class extension
+function LoaderProto() {}
+LoaderProto.prototype = Loader.prototype;
+SystemLoader.prototype = new LoaderProto();
+// SystemJS Loader Class and Extension helpers
+
+function SystemJSLoader() {
+  SystemLoader.call(this);
+
+  systemJSConstructor.call(this);
+}
+
+// inline Object.create-style class extension
+function SystemProto() {};
+SystemProto.prototype = SystemLoader.prototype;
+SystemJSLoader.prototype = new SystemProto();
+SystemJSLoader.prototype.constructor = SystemJSLoader;
+
+// remove ESML instantiate
+SystemJSLoader.prototype.instantiate = function() {};
+
+var systemJSConstructor;
+
+function hook(name, hook) {
+  SystemJSLoader.prototype[name] = hook(SystemJSLoader.prototype[name] || function() {});
+}
+function hookConstructor(hook) {
+  systemJSConstructor = hook(systemJSConstructor || function() {});
+}
+
+function dedupe(deps) {
+  var newDeps = [];
+  for (var i = 0, l = deps.length; i < l; i++)
+    if (indexOf.call(newDeps, deps[i]) == -1)
+      newDeps.push(deps[i])
+  return newDeps;
+}
+
+function group(deps) {
+  var names = [];
+  var indices = [];
+  for (var i = 0, l = deps.length; i < l; i++) {
+    var index = indexOf.call(names, deps[i]);
+    if (index === -1) {
+      names.push(deps[i]);
+      indices.push([i]);
+    }
+    else {
+      indices[index].push(i);
+    }
+  }
+  return { names: names, indices: indices };
+}
+
+var getOwnPropertyDescriptor = true;
+try {
+  Object.getOwnPropertyDescriptor({ a: 0 }, 'a');
+}
+catch(e) {
+  getOwnPropertyDescriptor = false;
+}
+
+// converts any module.exports object into an object ready for SystemJS.newModule
+function getESModule(exports) {
+  var esModule = {};
+  // don't trigger getters/setters in environments that support them
+  if (typeof exports == 'object' || typeof exports == 'function') {
+    if (getOwnPropertyDescriptor) {
+      var d;
+      for (var p in exports)
+        if (d = Object.getOwnPropertyDescriptor(exports, p))
+          defineProperty(esModule, p, d);
+    }
+    else {
+      var hasOwnProperty = exports && exports.hasOwnProperty;
+      for (var p in exports) {
+        if (!hasOwnProperty || exports.hasOwnProperty(p))
+          esModule[p] = exports[p];
+      }
+    }
+  }
+  esModule['default'] = exports;
+  defineProperty(esModule, '__useDefault', {
+    value: true
+  });
+  return esModule;
+}
+
+function extend(a, b, prepend) {
+  for (var p in b) {
+    if (!prepend || !(p in a))
+      a[p] = b[p];
+  }
+  return a;
+}
+
+// package configuration options
+var packageProperties = ['main', 'format', 'defaultExtension', 'meta', 'map', 'basePath', 'depCache'];
+
+// meta first-level extends where:
+// array + array appends
+// object + object extends
+// other properties replace
+function extendMeta(a, b, prepend) {
+  for (var p in b) {
+    var val = b[p];
+    if (!(p in a))
+      a[p] = val;
+    else if (val instanceof Array && a[p] instanceof Array)
+      a[p] = [].concat(prepend ? val : a[p]).concat(prepend ? a[p] : val);
+    else if (typeof val == 'object' && val !== null && typeof a[p] == 'object')
+      a[p] = extend(extend({}, a[p]), val, prepend);
+    else if (!prepend)
+      a[p] = val;
+  }
+}
+
+function warn(msg) {
+  if (this.warnings && typeof console != 'undefined' && console.warn)
+    console.warn(msg);
+}var absURLRegEx = /^[^\/]+:\/\//;
+
+function readMemberExpression(p, value) {
+  var pParts = p.split('.');
+  while (pParts.length)
+    value = value[pParts.shift()];
+  return value;
+}
+
+var baseURLCache = {};
+function getBaseURLObj() {
+  if (baseURLCache[this.baseURL])
+    return baseURLCache[this.baseURL];
+
+  // normalize baseURL if not already
+  if (this.baseURL[this.baseURL.length - 1] != '/')
+    this.baseURL += '/';
+
+  var baseURL = new URL(this.baseURL, baseURI);
+
+  this.baseURL = baseURL.href;
+
+  return (baseURLCache[this.baseURL] = baseURL);
+}
+
+function getMapMatch(map, name) {
+  var bestMatch, bestMatchLength = 0;
+
+  for (var p in map) {
+    if (name.substr(0, p.length) == p && (name.length == p.length || name[p.length] == '/')) {
+      var curMatchLength = p.split('/').length;
+      if (curMatchLength <= bestMatchLength)
+        continue;
+      bestMatch = p;
+      bestMatchLength = curMatchLength;
+    }
+  }
+
+  return bestMatch;
+}
+
+function setProduction(isProduction) {
+  this.set('@system-env', this.newModule({
+    browser: isBrowser,
+    node: !!this._nodeRequire,
+    production: isProduction
+  }));
+}
+
+var baseURIObj = new URL(baseURI);
+
+hookConstructor(function(constructor) {
+  return function() {
+    constructor.call(this);
+
+    // support baseURL
+    this.baseURL = baseURI.substr(0, baseURI.lastIndexOf('/') + 1);
+
+    // support map
+    this.map = {};
+
+    // global behaviour flags
+    this.warnings = false;
+    this.defaultJSExtensions = false;
+    this.globalEvaluationScope = true;
+    this.pluginFirst = false;
+
+    // by default load ".json" files as json
+    // leading * meta doesn't need normalization
+    // NB add this in next breaking release
+    // this.meta['*.json'] = { format: 'json' };
+
+    // Default settings for globalEvaluationScope:
+    // Disabled for WebWorker, Chrome Extensions and jsdom
+    if (isWorker 
+        || isBrowser && window.chrome && window.chrome.extension 
+        || isBrowser && navigator.userAgent.match(/^Node\.js/))
+      this.globalEvaluationScope = false;
+
+    // support the empty module, as a concept
+    this.set('@empty', this.newModule({}));
+
+    setProduction.call(this, false);
+  };
+});
+
+// include the node require since we're overriding it
+if (typeof require != 'undefined' && typeof process != 'undefined' && !process.browser)
+  SystemJSLoader.prototype._nodeRequire = require;
+
+var nodeCoreModules = ['assert', 'buffer', 'child_process', 'cluster', 'console', 'constants', 
+    'crypto', 'dgram', 'dns', 'domain', 'events', 'fs', 'http', 'https', 'module', 'net', 'os', 'path', 
+    'process', 'punycode', 'querystring', 'readline', 'repl', 'stream', 'string_decoder', 'sys', 'timers', 
+    'tls', 'tty', 'url', 'util', 'vm', 'zlib'];
+
+/*
+  Core SystemJS Normalization
+
+  If a name is relative, we apply URL normalization to the page
+  If a name is an absolute URL, we leave it as-is
+
+  Plain names (neither of the above) run through the map and paths
+  normalization phases.
+
+  The paths normalization phase applies last (paths extension), which
+  defines the `decanonicalize` function and normalizes everything into
+  a URL.
+ */
+hook('normalize', function(normalize) {
+  return function(name, parentName) {
+    // first run map config
+    if (name[0] != '.' && name[0] != '/' && !name.match(absURLRegEx)) {
+      var mapMatch = getMapMatch(this.map, name);
+      if (mapMatch)
+        name = this.map[mapMatch] + name.substr(mapMatch.length);
+    }
+
+    // dynamically load node-core modules when requiring `@node/fs` for example
+    if (name.substr(0, 6) == '@node/' && nodeCoreModules.indexOf(name.substr(6)) != -1) {
+      if (!this._nodeRequire)
+        throw new TypeError('Error loading ' + name + '. Can only load node core modules in Node.');
+      this.set(name, this.newModule(getESModule(this._nodeRequire(name.substr(6)))));
+    }
+    
+    // relative URL-normalization
+    if (name[0] == '.' || name[0] == '/') {
+      if (parentName)
+        name = new URL(name, parentName.replace(/#/g, '%05')).href.replace(/%05/g, '#');
+      else
+        name = new URL(name, baseURIObj).href;
+    }
+
+    // if the module is in the registry already, use that
+    if (this.has(name))
+      return name;
+
+    if (name.match(absURLRegEx)) {
+      // defaultJSExtensions backwards compatibility
+      if (this.defaultJSExtensions && name.substr(name.length - 3, 3) != '.js')
+        name += '.js';
+      return name;
+    }
+
+    // applyPaths implementation provided from ModuleLoader system.js source
+    name = applyPaths(this.paths, name) || name;
+
+    // defaultJSExtensions backwards compatibility
+    if (this.defaultJSExtensions && name.substr(name.length - 3, 3) != '.js')
+      name += '.js';
+
+    // ./x, /x -> page-relative
+    if (name[0] == '.' || name[0] == '/')
+      return new URL(name, baseURIObj).href;
+    // x -> baseURL-relative
+    else
+      return new URL(name, getBaseURLObj.call(this)).href;
+  };
+});
+
+// percent encode just '#' in urls if using HTTP requests
+var httpRequest = typeof XMLHttpRequest != 'undefined';
+hook('locate', function(locate) {
+  return function(load) {
+    return Promise.resolve(locate.call(this, load))
+    .then(function(address) {
+      if (httpRequest)
+        return address.replace(/#/g, '%23');
+      return address;
+    });
+  };
+});
+
+/*
+ * Fetch with authorization
+ */
+hook('fetch', function() {
+  return function(load) {
+    return new Promise(function(resolve, reject) {
+      fetchTextFromURL(load.address, load.metadata.authorization, resolve, reject);
+    });
+  };
+});
+
+/*
+  __useDefault
+  
+  When a module object looks like:
+  newModule(
+    __useDefault: true,
+    default: 'some-module'
+  })
+
+  Then importing that module provides the 'some-module'
+  result directly instead of the full module.
+
+  Useful for eg module.exports = function() {}
+*/
+hook('import', function(systemImport) {
+  return function(name, parentName, parentAddress) {
+    if (parentName && parentName.name)
+      warn.call(this, 'SystemJS.import(name, { name: parentName }) is deprecated for SystemJS.import(name, parentName), while importing ' + name + ' from ' + parentName.name);
+    return systemImport.call(this, name, parentName, parentAddress).then(function(module) {
+      return module.__useDefault ? module['default'] : module;
+    });
+  };
+});
+
+/*
+ * Allow format: 'detect' meta to enable format detection
+ */
+hook('translate', function(systemTranslate) {
+  return function(load) {
+    if (load.metadata.format == 'detect')
+      load.metadata.format = undefined;
+    return systemTranslate.call(this, load);
+  };
+});
+
+
+/*
+ * JSON format support
+ *
+ * Supports loading JSON files as a module format itself
+ *
+ * Usage:
+ *
+ * SystemJS.config({
+ *   meta: {
+ *     '*.json': { format: 'json' }
+ *   }
+ * });
+ *
+ * Module is returned as if written:
+ *
+ * export default {JSON}
+ *
+ * No named exports are provided
+ *
+ * Files ending in ".json" are treated as json automatically by SystemJS
+ */
+hook('instantiate', function(instantiate) {
+  return function(load) {
+    if (load.metadata.format == 'json' && !this.builder) {
+      var entry = load.metadata.entry = createEntry();
+      entry.deps = [];
+      entry.execute = function() {
+        try {
+          return JSON.parse(load.source);
+        }
+        catch(e) {
+          throw new Error("Invalid JSON file " + load.name);
+        }
+      };
+    }
+  };
+})
+
+/*
+ Extend config merging one deep only
+
+  loader.config({
+    some: 'random',
+    config: 'here',
+    deep: {
+      config: { too: 'too' }
+    }
+  });
+
+  <=>
+
+  loader.some = 'random';
+  loader.config = 'here'
+  loader.deep = loader.deep || {};
+  loader.deep.config = { too: 'too' };
+
+
+  Normalizes meta and package configs allowing for:
+
+  SystemJS.config({
+    meta: {
+      './index.js': {}
+    }
+  });
+
+  To become
+
+  SystemJS.meta['https://thissite.com/index.js'] = {};
+
+  For easy normalization canonicalization with latest URL support.
+
+*/
+SystemJSLoader.prototype.env = 'development';
+
+SystemJSLoader.prototype.config = function(cfg) {
+  var loader = this;
+
+  if ('warnings' in cfg)
+    loader.warnings = cfg.warnings;
+
+  // transpiler deprecation path
+  if (cfg.transpilerRuntime === false)
+    loader._loader.loadedTranspilerRuntime = true;
+
+  // always configure baseURL first
+  if (cfg.baseURL) {
+    var hasConfig = false;
+    function checkHasConfig(obj) {
+      for (var p in obj)
+        return true;
+    }
+    if (checkHasConfig(loader.packages) || checkHasConfig(loader.meta) || checkHasConfig(loader.depCache) || checkHasConfig(loader.bundles) || checkHasConfig(loader.packageConfigPaths))
+      throw new TypeError('Incorrect configuration order. The baseURL must be configured with the first SystemJS.config call.');
+
+    loader.baseURL = cfg.baseURL;
+
+    // sanitize baseURL
+    getBaseURLObj.call(loader);
+  }
+
+  if (cfg.defaultJSExtensions) {
+    loader.defaultJSExtensions = cfg.defaultJSExtensions;
+    warn.call(loader, 'The defaultJSExtensions configuration option is deprecated, use packages configuration instead.');
+  }
+
+  if (cfg.pluginFirst)
+    loader.pluginFirst = cfg.pluginFirst;
+
+  if (cfg.production)
+    setProduction.call(loader, true);
+
+  if (cfg.paths) {
+    for (var p in cfg.paths)
+      loader.paths[p] = cfg.paths[p];
+  }
+
+  if (cfg.map) {
+    var objMaps = '';
+    for (var p in cfg.map) {
+      var v = cfg.map[p];
+
+      // object map backwards-compat into packages configuration
+      if (typeof v !== 'string') {
+        objMaps += (objMaps.length ? ', ' : '') + '"' + p + '"';
+
+        var prop = loader.decanonicalize(p + (p[p.length - 1] != '/' ? '/' : ''));
+
+        // allow trailing '/' in package config
+        if (prop[prop.length - 1] == '/')
+          prop = prop.substr(0, prop.length - 1);
+
+        // if a package main, revert it
+        var pkgMatch = '';
+        for (var pkg in loader.packages) {
+          if (prop.substr(0, pkg.length) == pkg 
+              && (!prop[pkg.length] || prop[pkg.length] == '/') 
+              && pkgMatch.split('/').length < pkg.split('/').length)
+            pkgMatch = pkg;
+        }
+        if (pkgMatch && loader.packages[pkgMatch].main)
+          prop = prop.substr(0, prop.length - loader.packages[pkgMatch].main.length - 1);
+
+        var pkg = loader.packages[prop] = loader.packages[prop] || {};
+        pkg.map = v;
+      }
+      else {
+        loader.map[p] = v;
+      }
+    }
+    if (objMaps)
+      warn.call(loader, 'The map configuration for ' + objMaps + ' uses object submaps, which is deprecated in global map.\nUpdate this to use package contextual map with configs like SystemJS.config({ packages: { "' + p + '": { map: {...} } } }).');
+  }
+
+  if (cfg.packageConfigPaths) {
+    var packageConfigPaths = [];
+    for (var i = 0; i < cfg.packageConfigPaths.length; i++) {
+      var path = cfg.packageConfigPaths[i];
+      var packageLength = Math.max(path.lastIndexOf('*') + 1, path.lastIndexOf('/'));
+      var normalized = loader.decanonicalize(path.substr(0, packageLength) + '/');
+      normalized = normalized.substr(0, normalized.length - 1) + path.substr(packageLength);
+      packageConfigPaths[i] = normalized;
+    }
+    loader.packageConfigPaths = packageConfigPaths;
+  }
+
+  if (cfg.bundles) {
+    for (var p in cfg.bundles) {
+      var bundle = [];
+      for (var i = 0; i < cfg.bundles[p].length; i++)
+        bundle.push(loader.decanonicalize(cfg.bundles[p][i]));
+      loader.bundles[p] = bundle;
+    }
+  }
+
+  if (cfg.packages) {
+    for (var p in cfg.packages) {
+      if (p.match(/^([^\/]+:)?\/\/$/))
+        throw new TypeError('"' + p + '" is not a valid package name.');
+
+      // trailing slash allows paths matches here
+      // NB deprecate this to just remove trailing / 
+      //    as decanonicalize doesn't respond to trailing / 
+      //    and paths wildcards should deprecate
+      var prop = loader.decanonicalize(p + (p[p.length - 1] != '/' ? '/' : ''));
+
+      // allow trailing '/' in package config
+      if (prop[prop.length - 1] == '/')
+        prop = prop.substr(0, prop.length - 1);
+
+      loader.packages[prop] = loader.packages[prop] || {};
+
+      // meta backwards compatibility
+      if (cfg.packages[p].modules) {
+        warn.call(loader, 'Package ' + p + ' is configured with "modules", which is deprecated as it has been renamed to "meta".');
+        cfg.packages[p].meta = cfg.packages[p].modules;
+        delete cfg.packages[p].modules;
+      }
+
+      for (var q in cfg.packages[p])
+        if (indexOf.call(packageProperties, q) == -1)
+          warn.call(loader, '"' + q + '" is not a valid package configuration option in package ' + p);
+
+      extendMeta(loader.packages[prop], cfg.packages[p]);
+    }
+  }
+
+  for (var c in cfg) {
+    var v = cfg[c];
+    var normalizeProp = false;
+
+    if (c == 'baseURL' || c == 'map' || c == 'packages' || c == 'bundles' || c == 'paths' || c == 'warnings' || c == 'packageConfigPaths')
+      continue;
+
+    if (typeof v != 'object' || v instanceof Array) {
+      loader[c] = v;
+    }
+    else {
+      loader[c] = loader[c] || {};
+
+      if (c == 'meta' || c == 'depCache')
+        normalizeProp = true;
+
+      for (var p in v) {
+        // base-level wildcard meta does not normalize to retain catch-all quality
+        if (c == 'meta' && p[0] == '*')
+          loader[c][p] = v[p];
+        else if (normalizeProp)
+          loader[c][loader.decanonicalize(p)] = v[p];
+        else
+          loader[c][p] = v[p];
+      }
+    }
+  }
+};/*
+ * Package Configuration Extension
+ *
+ * Example:
+ *
+ * SystemJS.packages = {
+ *   jquery: {
+ *     basePath: 'lib', // optionally only use a subdirectory within the package
+ *     main: 'index.js', // when not set, package name is requested directly
+ *     format: 'amd',
+ *     defaultExtension: 'ts', // defaults to 'js', can be set to false
+ *     modules: {
+ *       '*.ts': {
+ *         loader: 'typescript'
+ *       },
+ *       'vendor/sizzle.js': {
+ *         format: 'global'
+ *       }
+ *     },
+ *     map: {
+ *        // map internal require('sizzle') to local require('./vendor/sizzle')
+ *        sizzle: './vendor/sizzle.js',
+ *        // map any internal or external require of 'jquery/vendor/another' to 'another/index.js'
+ *        './vendor/another.js': './another/index.js',
+ *        // test.js / test -> lib/test.js
+ *        './test.js': './lib/test.js',
+ *
+ *        // environment-specific map configurations
+ *        './index.js': {
+ *          '~browser': './index-node.js'
+ *        }
+ *     },
+ *     // allows for setting package-prefixed depCache
+ *     // keys are normalized module names relative to the package itself
+ *     depCache: {
+ *       // import 'package/index.js' loads in parallel package/lib/test.js,package/vendor/sizzle.js
+ *       './index.js': ['./test'],
+ *       './test.js': ['external-dep'],
+ *       'external-dep/path.js': ['./another.js']
+ *     }
+ *   }
+ * };
+ *
+ * Then:
+ *   import 'jquery'                       -> jquery/index.js
+ *   import 'jquery/submodule'             -> jquery/submodule.js
+ *   import 'jquery/submodule.ts'          -> jquery/submodule.ts loaded as typescript
+ *   import 'jquery/vendor/another'        -> another/index.js
+ *
+ * Detailed Behaviours
+ * - main can have a leading "./" can be added optionally
+ * - map and defaultExtension are applied to the main
+ * - defaultExtension adds the extension only if the exact extension is not present
+ * - defaultJSExtensions applies after map when defaultExtension is not set
+ * - if a meta value is available for a module, map and defaultExtension are skipped
+ * - like global map, package map also applies to subpaths (sizzle/x, ./vendor/another/sub)
+ * - condition module map is '@env' module in package or '@system-env' globally
+ * - map targets support conditional interpolation ('./x': './x.#{|env}.js')
+ * - internal package map targets cannot use boolean conditionals
+ *
+ * In addition, the following modules properties will be allowed to be package
+ * -relative as well in the package module config:
+ *
+ *   - loader
+ *   - alias
+ *
+ *
+ * Package Configuration Loading
+ *
+ * Not all packages may already have their configuration present in the System config
+ * For these cases, a list of packageConfigPaths can be provided, which when matched against
+ * a request, will first request a ".json" file by the package name to derive the package
+ * configuration from. This allows dynamic loading of non-predetermined code, a key use
+ * case in SystemJS.
+ *
+ * Example:
+ *
+ *   SystemJS.packageConfigPaths = ['packages/test/package.json', 'packages/*.json'];
+ *
+ *   // will first request 'packages/new-package/package.json' for the package config
+ *   // before completing the package request to 'packages/new-package/path'
+ *   SystemJS.import('packages/new-package/path');
+ *
+ *   // will first request 'packages/test/package.json' before the main
+ *   SystemJS.import('packages/test');
+ *
+ * When a package matches packageConfigPaths, it will always send a config request for
+ * the package configuration.
+ * The package name itself is taken to be the match up to and including the last wildcard
+ * or trailing slash.
+ * The most specific package config path will be used.
+ * Any existing package configurations for the package will deeply merge with the
+ * package config, with the existing package configurations taking preference.
+ * To opt-out of the package configuration request for a package that matches
+ * packageConfigPaths, use the { configured: true } package config option.
+ *
+ */
+(function() {
+
+  hookConstructor(function(constructor) {
+    return function() {
+      constructor.call(this);
+      this.packages = {};
+      this.packageConfigPaths = {};
+    };
+  });
+
+  function getPackage(loader, normalized) {
+    // use most specific package
+    var curPkg, curPkgLen = 0, pkgLen;
+    for (var p in loader.packages) {
+      if (normalized.substr(0, p.length) === p && (normalized.length === p.length || normalized[p.length] === '/')) {
+        pkgLen = p.split('/').length;
+        if (pkgLen > curPkgLen) {
+          curPkg = p;
+          curPkgLen = pkgLen;
+        }
+      }
+    }
+    return curPkg;
+  }
+
+  function getBasePath(pkg) {
+    // sanitize basePath
+    var basePath = pkg.basePath && pkg.basePath != '.' ? pkg.basePath : '';
+    if (basePath) {
+      if (basePath.substr(0, 2) == './')
+        basePath = basePath.substr(2);
+      if (basePath[basePath.length - 1] != '/')
+        basePath += '/';
+    }
+    return basePath;
+  }
+
+  function addDefaultExtension(loader, pkg, pkgName, basePath, subPath, skipExtensions) {
+    // don't apply extensions to folders or if defaultExtension = false
+    if (!subPath || subPath[subPath.length - 1] == '/' || skipExtensions || pkg.defaultExtension === false)
+      return subPath;
+
+    // NB are you sure about this?
+    // skip if we have interpolation conditional syntax in subPath?
+    if (subPath.match(interpolationRegEx))
+      return subPath;
+
+    var metaMatch = false;
+
+    // exact meta or meta with any content after the last wildcard skips extension
+    if (pkg.meta)
+      getMetaMatches(pkg.meta, subPath, function(metaPattern, matchMeta, matchDepth) {
+        if (matchDepth == 0 || metaPattern.lastIndexOf('*') != metaPattern.length - 1)
+          return metaMatch = true;
+      });
+
+    // exact global meta or meta with any content after the last wildcard skips extension
+    if (!metaMatch && loader.meta)
+      getMetaMatches(loader.meta, pkgName + '/' + basePath + subPath, function(metaPattern, matchMeta, matchDepth) {
+        if (matchDepth == 0 || metaPattern.lastIndexOf('*') != metaPattern.length - 1)
+          return metaMatch = true;
+      });
+
+    if (metaMatch)
+      return subPath;
+
+    // work out what the defaultExtension is and add if not there already
+    // NB reconsider if default should really be ".js"?
+    var defaultExtension = '.' + (pkg.defaultExtension || 'js');
+    if (subPath.substr(subPath.length - defaultExtension.length) != defaultExtension)
+      return subPath + defaultExtension;
+    else
+      return subPath;
+  }
+
+  function applyPackageConfigSync(loader, pkg, pkgName, subPath, skipExtensions) {
+    // main
+    if (!subPath) {
+      if (pkg.main)
+        subPath = pkg.main.substr(0, 2) == './' ? pkg.main.substr(2) : pkg.main;
+      // also no submap if name is package itself (import 'pkg' -> 'path/to/pkg.js')
+      else
+        // NB can add a default package main convention here when defaultJSExtensions is deprecated
+        // if it becomes internal to the package then it would no longer be an exit path
+        return pkgName + (loader.defaultJSExtensions ? '.js' : '');
+    }
+
+    var basePath = getBasePath(pkg);
+
+    // map config checking without then with extensions
+    if (pkg.map) {
+      var mapPath = './' + subPath;
+
+      var mapMatch = getMapMatch(pkg.map, mapPath);
+
+      // we then check map with the default extension adding
+      if (!mapMatch) {
+        mapPath = './' + addDefaultExtension(loader, pkg, pkgName, basePath, subPath, skipExtensions);
+        if (mapPath != './' + subPath)
+          mapMatch = getMapMatch(pkg.map, mapPath);
+      }
+      if (mapMatch)
+        return doMapSync(loader, pkg, pkgName, basePath, mapMatch, mapPath, skipExtensions);
+    }
+
+    // normal package resolution
+    return pkgName + '/' + basePath + addDefaultExtension(loader, pkg, pkgName, basePath, subPath, skipExtensions);
+  }
+
+  function doMapSync(loader, pkg, pkgName, basePath, mapMatch, path, skipExtensions) {
+    var mapped = pkg.map[mapMatch];
+
+    // ignore conditionals in sync
+    if (typeof mapped != 'string')
+      mapped = mapMatch = path;
+
+    // package map to main / base-level
+    if (mapped == '.')
+      mapped = pkgName;
+
+    // internal package map
+    else if (mapped.substr(0, 2) == './')
+      return pkgName + '/' + basePath + addDefaultExtension(loader, pkg, pkgName, basePath, mapped.substr(2) + path.substr(mapMatch.length), skipExtensions);
+    
+    // external map reference
+    return loader.normalizeSync(mapped + path.substr(mapMatch.length), pkgName + '/');
+  }
+
+  function applyPackageConfig(loader, pkg, pkgName, subPath, skipExtensions) {
+    // main
+    if (!subPath) {
+      if (pkg.main)
+        subPath = pkg.main.substr(0, 2) == './' ? pkg.main.substr(2) : pkg.main;
+      // also no submap if name is package itself (import 'pkg' -> 'path/to/pkg.js')
+      else
+        // NB can add a default package main convention here when defaultJSExtensions is deprecated
+        // if it becomes internal to the package then it would no longer be an exit path
+        return Promise.resolve(pkgName + (loader.defaultJSExtensions ? '.js' : ''));
+    }
+
+    var basePath = getBasePath(pkg);
+
+    // map config checking without then with extensions
+    var mapPath, mapMatch;
+
+    if (pkg.map) {
+      mapPath = './' + subPath;
+      mapMatch = getMapMatch(pkg.map, mapPath);
+
+      // we then check map with the default extension adding
+      if (!mapMatch) {
+        mapPath = './' + addDefaultExtension(loader, pkg, pkgName, basePath, subPath, skipExtensions);
+        if (mapPath != './' + subPath)
+          mapMatch = getMapMatch(pkg.map, mapPath);
+      }
+    }
+
+    return (mapMatch ? doMap(loader, pkg, pkgName, basePath, mapMatch, mapPath, skipExtensions) : Promise.resolve())
+    .then(function(mapped) {
+      if (mapped)
+        return Promise.resolve(mapped);
+
+      // normal package resolution / fallback resolution for no conditional match
+      return Promise.resolve(pkgName + '/' + basePath + addDefaultExtension(loader, pkg, pkgName, basePath, subPath, skipExtensions));
+    });
+  }
+
+  function doStringMap(loader, pkg, pkgName, basePath, mapMatch, mapped, path, skipExtensions) {
+    // NB the interpolation cases should strictly skip subsequent interpolation
+
+    // package map to main / base-level
+    if (mapped == '.')
+      mapped = pkgName;
+    
+    // internal package map
+    else if (mapped.substr(0, 2) == './')
+      return Promise.resolve(pkgName + '/' + basePath + addDefaultExtension(loader, pkg, pkgName, basePath, mapped.substr(2) + path.substr(mapMatch.length), skipExtensions))
+      .then(function(name) {
+        return interpolateConditional.call(loader, name, pkgName + '/');
+      });
+    
+    // external map reference
+    // NB deprecate the use of the second argument here -> should be fully global reference
+    return loader.normalize(mapped + path.substr(mapMatch.length), pkgName + '/');
+  }
+
+  function doMap(loader, pkg, pkgName, basePath, mapMatch, path, skipExtensions) {
+    var mapped = pkg.map[mapMatch];
+
+    if (typeof mapped == 'string')
+      return doStringMap(loader, pkg, pkgName, basePath, mapMatch, mapped, path, skipExtensions);
+
+    // we use a special conditional syntax to allow the builder to handle conditional branch points further
+    if (loader.builder)
+      return Promise.resolve(pkgName + '/#:' + path);
+
+    // map object -> conditional map
+    return loader['import'](pkg.map['@env'] || '@system-env', pkgName)
+    .then(function(env) {
+      // first map condition to match is used
+      for (var e in mapped) {
+        var negate = e[0] == '~';
+
+        var value = readMemberExpression(negate ? e.substr(1) : e, env);
+
+        if (!negate && value || negate && !value)
+          return mapped[e];
+      }
+    })
+    .then(function(mapped) {
+      if (mapped)
+        return doStringMap(loader, pkg, pkgName, basePath, mapMatch, mapped, path, skipExtensions);
+
+      // no environment match -> fallback to original subPath by returning undefined
+    });
+  }
+
+  // normalizeSync = decanonicalize + package resolution
+  SystemJSLoader.prototype.normalizeSync = SystemJSLoader.prototype.decanonicalize = SystemJSLoader.prototype.normalize;
+
+  // decanonicalize must JUST handle package defaultExtension: false case when defaultJSExtensions is set
+  // to be deprecated!
+  hook('decanonicalize', function(decanonicalize) {
+    return function(name, parentName) {
+      var decanonicalized = decanonicalize.call(this, name, parentName);
+
+      if (!this.defaultJSExtensions)
+        return decanonicalized;
+    
+      var pkgName = getPackage(this, decanonicalized);
+
+      var defaultExtension = name[name.length - 1] == '/' ? false : pkgName && this.packages[pkgName].defaultExtension;
+      
+      if ((defaultExtension === false || defaultExtension && defaultExtension != '.js') && name.substr(name.length - 3, 3) != '.js' && decanonicalized.substr(decanonicalized.length - 3, 3) == '.js')
+        decanonicalized = decanonicalized.substr(0, decanonicalized.length - 3);
+
+      return decanonicalized;
+    };
+  });
+
+  hook('normalizeSync', function(normalizeSync) {
+    return function(name, parentName, isPlugin) {
+      warn.call(this, 'SystemJS.normalizeSync has been deprecated for SystemJS.decanonicalize.');
+
+      var loader = this;
+      isPlugin = isPlugin === true;
+
+      // apply contextual package map first
+      // (we assume the parent package config has already been loaded)
+      if (parentName)
+        var parentPackageName = getPackage(loader, parentName) ||
+            loader.defaultJSExtensions && parentName.substr(parentName.length - 3, 3) == '.js' &&
+            getPackage(loader, parentName.substr(0, parentName.length - 3));
+
+      var parentPackage = parentPackageName && loader.packages[parentPackageName];
+
+      // remove any parent basePath from parentName
+      if (parentPackage) {
+        var parentBasePath = getBasePath(parentPackage);
+        if (parentBasePath && parentName.substr(parentPackageName.length + 1, parentBasePath.length) == parentBasePath)
+          parentName = parentPackageName + parentName.substr(parentPackageName.length + parentBasePath.length);
+      }
+
+      // ignore . since internal maps handled by standard package resolution
+      if (parentPackage && name[0] != '.') {
+        var parentMap = parentPackage.map;
+        var parentMapMatch = parentMap && getMapMatch(parentMap, name);
+
+        if (parentMapMatch && typeof parentMap[parentMapMatch] == 'string')
+          return doMapSync(loader, parentPackage, parentPackageName, getBasePath(parentPackage), parentMapMatch, name, isPlugin);
+      }
+
+      var defaultJSExtension = loader.defaultJSExtensions && name.substr(name.length - 3, 3) != '.js';
+
+      // apply map, core, paths, contextual package map
+      var normalized = normalizeSync.call(loader, name, parentName);
+
+      // undo defaultJSExtension
+      if (defaultJSExtension && normalized.substr(normalized.length - 3, 3) != '.js')
+        defaultJSExtension = false;
+      if (defaultJSExtension)
+        normalized = normalized.substr(0, normalized.length - 3);
+
+      var pkgConfigMatch = getPackageConfigMatch(loader, normalized);
+      var pkgName = pkgConfigMatch && pkgConfigMatch.packageName || getPackage(loader, normalized);
+
+      if (!pkgName)
+        return normalized + (defaultJSExtension ? '.js' : '');
+
+      var subPath = normalized.substr(pkgName.length + 1);
+
+      return applyPackageConfigSync(loader, loader.packages[pkgName] || {}, pkgName, subPath, isPlugin);
+    };
+  });
+
+  hook('normalize', function(normalize) {
+    return function(name, parentName, isPlugin) {
+      var loader = this;
+      isPlugin = isPlugin === true;
+
+      return Promise.resolve()
+      .then(function() {
+        // apply contextual package map first
+        // (we assume the parent package config has already been loaded)
+        if (parentName)
+          var parentPackageName = getPackage(loader, parentName) ||
+              loader.defaultJSExtensions && parentName.substr(parentName.length - 3, 3) == '.js' &&
+              getPackage(loader, parentName.substr(0, parentName.length - 3));
+
+        var parentPackage = parentPackageName && loader.packages[parentPackageName];
+
+        // remove any parent basePath from parentName
+        if (parentPackage) {
+          var parentBasePath = getBasePath(parentPackage);
+          if (parentBasePath && parentName.substr(parentPackageName.length + 1, parentBasePath.length) == parentBasePath)
+            parentName = parentPackageName + parentName.substr(parentPackageName.length + parentBasePath.length);
+        }
+
+        // ignore . since internal maps handled by standard package resolution
+        if (parentPackage && name.substr(0, 2) != './') {
+          var parentMap = parentPackage.map;
+          var parentMapMatch = parentMap && getMapMatch(parentMap, name);
+
+          if (parentMapMatch)
+            return doMap(loader, parentPackage, parentPackageName, parentBasePath, parentMapMatch, name, isPlugin);
+        }
+
+        return Promise.resolve();
+      })
+      .then(function(mapped) {
+        if (mapped)
+          return mapped;
+
+        var defaultJSExtension = loader.defaultJSExtensions && name.substr(name.length - 3, 3) != '.js';
+
+        // apply map, core, paths, contextual package map
+        var normalized = normalize.call(loader, name, parentName);
+
+        // undo defaultJSExtension
+        if (defaultJSExtension && normalized.substr(normalized.length - 3, 3) != '.js')
+          defaultJSExtension = false;
+        if (defaultJSExtension)
+          normalized = normalized.substr(0, normalized.length - 3);
+
+        var pkgConfigMatch = getPackageConfigMatch(loader, normalized);
+        var pkgName = pkgConfigMatch && pkgConfigMatch.packageName || getPackage(loader, normalized);
+
+        if (!pkgName)
+          return Promise.resolve(normalized + (defaultJSExtension ? '.js' : ''));
+
+        var pkg = loader.packages[pkgName];
+
+        // if package is already configured or not a dynamic config package, use existing package config
+        var isConfigured = pkg && (pkg.configured || !pkgConfigMatch);
+        return (isConfigured ? Promise.resolve(pkg) : loadPackageConfigPath(loader, pkgName, pkgConfigMatch.configPath))
+        .then(function(pkg) {
+          var subPath = normalized.substr(pkgName.length + 1);
+
+          return applyPackageConfig(loader, pkg, pkgName, subPath, isPlugin);
+        });
+      });
+    };
+  });
+
+  // check if the given normalized name matches a packageConfigPath
+  // if so, loads the config
+  var packageConfigPaths = {};
+
+  // data object for quick checks against package paths
+  function createPkgConfigPathObj(path) {
+    var lastWildcard = path.lastIndexOf('*');
+    var length = Math.max(lastWildcard + 1, path.lastIndexOf('/'));
+    return {
+      length: length,
+      // NB handle regex control character escapes or simply create a test function here
+      regEx: new RegExp('^(' + path.substr(0, length).replace(/\*/g, '[^\\/]+') + ')(\\/|$)'),
+      wildcard: lastWildcard != -1
+    };
+  }
+
+  // most specific match wins
+  function getPackageConfigMatch(loader, normalized) {
+    var pkgName, exactMatch = false, configPath;
+    for (var i = 0; i < loader.packageConfigPaths.length; i++) {
+      var packageConfigPath = loader.packageConfigPaths[i];
+      var p = packageConfigPaths[packageConfigPath] || (packageConfigPaths[packageConfigPath] = createPkgConfigPathObj(packageConfigPath));
+      if (normalized.length < p.length)
+        continue;
+      var match = normalized.match(p.regEx);
+      if (match && (!pkgName || (!(exactMatch && p.wildcard) && pkgName.length < match[1].length))) {
+        pkgName = match[1];
+        exactMatch = !p.wildcard;
+        configPath = pkgName + packageConfigPath.substr(p.length);
+      }
+    }
+
+    if (!pkgName)
+      return;
+
+    return {
+      packageName: pkgName,
+      configPath: configPath
+    };
+  }
+
+  function loadPackageConfigPath(loader, pkgName, pkgConfigPath) {
+    var configLoader = loader.pluginLoader || loader;
+
+    // NB remove this when json is default
+    (configLoader.meta[pkgConfigPath] = configLoader.meta[pkgConfigPath] || {}).format = 'json';
+
+    return configLoader.load(pkgConfigPath)
+    .then(function() {
+      pkgConfig = configLoader.get(pkgConfigPath);
+
+      var cfg = pkgConfig['default'];
+
+      // support "systemjs" prefixing
+      if (cfg.systemjs)
+        cfg = cfg.systemjs;
+
+      // modules backwards compatibility
+      if (cfg.modules) {
+        cfg.meta = cfg.modules;
+        warn.call(loader, 'Package config file ' + pkgConfigPath + ' is configured with "modules", which is deprecated as it has been renamed to "meta".');
+      }
+
+      // remove any non-system properties if generic config file (eg package.json)
+      for (var p in cfg) {
+        if (indexOf.call(packageProperties, p) == -1)
+          delete cfg[p];
+      }
+
+      // deeply-merge (to first level) config with any existing package config
+      var pkg = loader.packages[pkgName] = loader.packages[pkgName] || {};
+      extendMeta(pkg, cfg, true);
+
+      // support external depCache
+      var basePath = getBasePath(pkg);
+      if (cfg.depCache) {
+        for (var d in cfg.depCache) {
+          var dNormalized;
+
+          if (d.substr(0, 2) == './')
+            dNormalized = pkgName + '/' + basePath + d.substr(2);
+          else
+            dNormalized = coreResolve.call(loader, d);
+          loader.depCache[dNormalized] = (loader.depCache[dNormalized] || []).concat(cfg.depCache[d]);
+        }
+        delete cfg.depCache;
+      }
+
+      return pkg;
+    });
+  }
+
+  function getMetaMatches(pkgMeta, subPath, matchFn) {
+    // wildcard meta
+    var meta = {};
+    var wildcardIndex;
+    for (var module in pkgMeta) {
+      // allow meta to start with ./ for flexibility
+      var dotRel = module.substr(0, 2) == './' ? './' : '';
+      if (dotRel)
+        module = module.substr(2);
+
+      wildcardIndex = module.indexOf('*');
+      if (wildcardIndex === -1)
+        continue;
+
+      if (module.substr(0, wildcardIndex) == subPath.substr(0, wildcardIndex)
+          && module.substr(wildcardIndex + 1) == subPath.substr(subPath.length - module.length + wildcardIndex + 1)) {
+        // alow match function to return true for an exit path
+        if (matchFn(module, pkgMeta[dotRel + module], module.split('/').length))
+          return;
+      }
+    }
+    // exact meta
+    var exactMeta = pkgMeta[subPath] || pkgMeta['./' + subPath];
+    if (exactMeta)
+      matchFn(exactMeta, exactMeta, 0);
+  }
+
+  hook('locate', function(locate) {
+    return function(load) {
+      var loader = this;
+      return Promise.resolve(locate.call(this, load))
+      .then(function(address) {
+        var pkgName = getPackage(loader, load.name);
+        if (pkgName) {
+          var pkg = loader.packages[pkgName];
+          var basePath = getBasePath(pkg);
+          var subPath = load.name.substr(pkgName.length + basePath.length + 1);
+
+          // format
+          if (pkg.format)
+            load.metadata.format = load.metadata.format || pkg.format;
+
+          var meta = {};
+          if (pkg.meta) {
+            var bestDepth = 0;
+
+            // NB support a main shorthand in meta here?
+            getMetaMatches(pkg.meta, subPath, function(metaPattern, matchMeta, matchDepth) {
+              if (matchDepth > bestDepth)
+                bestDepth = matchDepth;
+              extendMeta(meta, matchMeta, matchDepth && bestDepth > matchDepth);
+            });
+
+            // allow alias and loader to be package-relative
+            if (meta.alias && meta.alias.substr(0, 2) == './')
+              meta.alias = pkgName + meta.alias.substr(1);
+            if (meta.loader && meta.loader.substr(0, 2) == './')
+              meta.loader = pkgName + meta.loader.substr(1);
+            extendMeta(load.metadata, meta);
+          }
+        }
+
+        return address;
+      });
+    };
+  });
+
+})();
+/*
+ * Script tag fetch
+ *
+ * When load.metadata.scriptLoad is true, we load via script tag injection.
+ */
+(function() {
+
+  if (typeof document != 'undefined')
+    var head = document.getElementsByTagName('head')[0];
+
+  var curSystem;
+
+  // if doing worker executing, this is set to the load record being executed
+  var workerLoad = null;
+  
+  // interactive mode handling method courtesy RequireJS
+  var ieEvents = head && (function() {
+    var s = document.createElement('script');
+    var isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]';
+    return s.attachEvent && !(s.attachEvent.toString && s.attachEvent.toString().indexOf('[native code') < 0) && !isOpera;
+  })();
+
+  // IE interactive-only part
+  // we store loading scripts array as { script: <script>, load: {...} }
+  var interactiveLoadingScripts = [];
+  var interactiveScript;
+  function getInteractiveScriptLoad() {
+    if (interactiveScript && interactiveScript.script.readyState === 'interactive')
+      return interactiveScript.load;
+
+    for (var i = 0; i < interactiveLoadingScripts.length; i++)
+      if (interactiveLoadingScripts[i].script.readyState == 'interactive') {
+        interactiveScript = interactiveLoadingScripts[i];
+        return interactiveScript.load;
+      }
+  }
+  
+  // System.register, System.registerDynamic, AMD define pipeline
+  // this is called by the above methods when they execute
+  // we then run the reduceRegister_ collection function either immediately
+  // if we are in IE and know the currently executing script (interactive)
+  // or later if we need to wait for the synchronous load callback to know the script
+  var loadingCnt = 0;
+  var registerQueue = [];
+  hook('pushRegister_', function(pushRegister) {
+    return function(register) {
+      // if using eval-execution then skip
+      if (pushRegister.call(this, register))
+        return false;
+
+      // if using worker execution, then we're done
+      if (workerLoad)
+        this.reduceRegister_(workerLoad, register);
+
+      // detect if we know the currently executing load (IE)
+      // if so, immediately call reduceRegister
+      else if (ieEvents)
+        this.reduceRegister_(getInteractiveScriptLoad(), register);
+
+      // otherwise, add to our execution queue
+      // to call reduceRegister on sync script load event
+      else if (loadingCnt)
+        registerQueue.push(register);
+
+      // if we're not currently loading anything though
+      // then do the reduction against a null load
+      // (out of band named define or named register)
+      // note even in non-script environments, this catch is used
+      else
+        this.reduceRegister_(null, register);
+
+      return true;
+    };
+  });
+
+  function webWorkerImport(loader, load) {
+    return new Promise(function(resolve, reject) {
+      if (load.metadata.integrity)
+        reject(new Error('Subresource integrity checking is not supported in web workers.'));
+
+      workerLoad = load;
+      try {
+        importScripts(load.address);
+      }
+      catch(e) {
+        workerLoad = null;
+        reject(e);
+      }
+      workerLoad = null;
+
+      // if nothing registered, then something went wrong
+      if (!load.metadata.entry)
+        reject(new Error(load.address + ' did not call System.register or AMD define'));
+
+      resolve('');
+    });
+  }
+
+  // override fetch to use script injection
+  hook('fetch', function(fetch) {
+    return function(load) {
+      var loader = this;
+
+      if (!load.metadata.scriptLoad || (!isBrowser && !isWorker))
+        return fetch.call(this, load);
+
+      if (isWorker)
+        return webWorkerImport(loader, load);
+
+      return new Promise(function(resolve, reject) {
+        var s = document.createElement('script');
+        
+        s.async = true;
+        
+        if (load.metadata.integrity)
+          s.setAttribute('integrity', load.metadata.integrity);
+
+        if (ieEvents) {
+          s.attachEvent('onreadystatechange', complete);
+          interactiveLoadingScripts.push({
+            script: s,
+            load: load
+          });
+        }
+        else {
+          s.addEventListener('load', complete, false);
+          s.addEventListener('error', error, false);
+        }
+
+        loadingCnt++;
+
+        curSystem = __global.System;
+
+        s.src = load.address;
+        head.appendChild(s);
+
+        function complete(evt) {
+          if (s.readyState && s.readyState != 'loaded' && s.readyState != 'complete')
+            return;
+
+          loadingCnt--;
+
+          // complete call is sync on execution finish
+          // (in ie already done reductions)
+          if (!load.metadata.entry && !registerQueue.length) {
+            loader.reduceRegister_(load);
+          }
+          else if (!ieEvents) {
+            for (var i = 0; i < registerQueue.length; i++)
+              loader.reduceRegister_(load, registerQueue[i]);
+            registerQueue = [];
+          }
+
+          cleanup();
+
+          // if nothing registered, then something went wrong
+          if (!load.metadata.entry && !load.metadata.bundle)
+            reject(new Error(load.name + ' did not call System.register or AMD define. If loading a global module configure the global name via the meta exports property for script injection support.'));
+
+          resolve('');
+        }
+
+        function error(evt) {
+          cleanup();
+          reject(new Error('Unable to load script ' + load.address));
+        }
+
+        function cleanup() {
+          __global.System = curSystem;
+
+          if (s.detachEvent) {
+            s.detachEvent('onreadystatechange', complete);
+            for (var i = 0; i < interactiveLoadingScripts.length; i++)
+              if (interactiveLoadingScripts[i].script == s) {
+                if (interactiveScript && interactiveScript.script == s)
+                  interactiveScript = null;
+                interactiveLoadingScripts.splice(i, 1);
+              }
+          }
+          else {
+            s.removeEventListener('load', complete, false);
+            s.removeEventListener('error', error, false);
+          }
+
+          head.removeChild(s);
+        }
+      });
+    };
+  });
+})();
+/*
+ * Instantiate registry extension
+ *
+ * Supports Traceur System.register 'instantiate' output for loading ES6 as ES5.
+ *
+ * - Creates the loader.register function
+ * - Also supports metadata.format = 'register' in instantiate for anonymous register modules
+ * - Also supports metadata.deps, metadata.execute and metadata.executingRequire
+ *     for handling dynamic modules alongside register-transformed ES6 modules
+ *
+ *
+ * The code here replicates the ES6 linking groups algorithm to ensure that
+ * circular ES6 compiled into System.register can work alongside circular AMD 
+ * and CommonJS, identically to the actual ES6 loader.
+ *
+ */
+
+
+/*
+ * Registry side table entries in loader.defined
+ * Registry Entry Contains:
+ *    - name
+ *    - deps 
+ *    - declare for declarative modules
+ *    - execute for dynamic modules, different to declarative execute on module
+ *    - executingRequire indicates require drives execution for circularity of dynamic modules
+ *    - declarative optional boolean indicating which of the above
+ *
+ * Can preload modules directly on SystemJS.defined['my/module'] = { deps, execute, executingRequire }
+ *
+ * Then the entry gets populated with derived information during processing:
+ *    - normalizedDeps derived from deps, created in instantiate
+ *    - groupIndex used by group linking algorithm
+ *    - evaluated indicating whether evaluation has happend
+ *    - module the module record object, containing:
+ *      - exports actual module exports
+ *
+ *    For dynamic we track the es module with:
+ *    - esModule actual es module value
+ *    - esmExports whether to extend the esModule with named exports
+ *      
+ *    Then for declarative only we track dynamic bindings with the 'module' records:
+ *      - name
+ *      - exports
+ *      - setters declarative setter functions
+ *      - dependencies, module records of dependencies
+ *      - importers, module records of dependents
+ *
+ * After linked and evaluated, entries are removed, declarative module records remain in separate
+ * module binding table
+ *
+ */
+
+var leadingCommentAndMetaRegEx = /^\s*(\/\*[^\*]*(\*(?!\/)[^\*]*)*\*\/|\s*\/\/[^\n]*|\s*"[^"]+"\s*;?|\s*'[^']+'\s*;?)*\s*/;
+function detectRegisterFormat(source) {
+  var leadingCommentAndMeta = source.match(leadingCommentAndMetaRegEx);
+  return leadingCommentAndMeta && source.substr(leadingCommentAndMeta[0].length, 15) == 'System.register';
+}
+
+function createEntry() {
+  return {
+    name: null,
+    deps: null,
+    originalIndices: null,
+    declare: null,
+    execute: null,
+    executingRequire: false,
+    declarative: false,
+    normalizedDeps: null,
+    groupIndex: null,
+    evaluated: false,
+    module: null,
+    esModule: null,
+    esmExports: false
+  };
+}
+
+(function() {
+
+  /*
+   * There are two variations of System.register:
+   * 1. System.register for ES6 conversion (2-3 params) - System.register([name, ]deps, declare)
+   *    see https://github.com/ModuleLoader/es6-module-loader/wiki/System.register-Explained
+   *
+   * 2. System.registerDynamic for dynamic modules (3-4 params) - System.registerDynamic([name, ]deps, executingRequire, execute)
+   * the true or false statement 
+   *
+   * this extension implements the linking algorithm for the two variations identical to the spec
+   * allowing compiled ES6 circular references to work alongside AMD and CJS circular references.
+   *
+   */
+  SystemJSLoader.prototype.register = function(name, deps, declare) {
+    if (typeof name != 'string') {
+      declare = deps;
+      deps = name;
+      name = null;
+    }
+
+    // dynamic backwards-compatibility
+    // can be deprecated eventually
+    if (typeof declare == 'boolean')
+      return this.registerDynamic.apply(this, arguments);
+
+    var entry = createEntry();
+    // ideally wouldn't apply map config to bundle names but 
+    // dependencies go through map regardless so we can't restrict
+    // could reconsider in shift to new spec
+    entry.name = name && (this.decanonicalize || this.normalize).call(this, name);
+    entry.declarative = true;
+    entry.deps = deps;
+    entry.declare = declare;
+
+    this.pushRegister_({
+      amd: false,
+      entry: entry
+    });
+  };
+  SystemJSLoader.prototype.registerDynamic = function(name, deps, declare, execute) {
+    if (typeof name != 'string') {
+      execute = declare;
+      declare = deps;
+      deps = name;
+      name = null;
+    }
+
+    // dynamic
+    var entry = createEntry();
+    entry.name = name && (this.decanonicalize || this.normalize).call(this, name);
+    entry.deps = deps;
+    entry.execute = execute;
+    entry.executingRequire = declare;
+
+    this.pushRegister_({
+      amd: false,
+      entry: entry
+    });
+  };
+  hook('reduceRegister_', function() {
+    return function(load, register) {
+      if (!register)
+        return;
+
+      var entry = register.entry;
+      var curMeta = load && load.metadata;
+
+      // named register
+      if (entry.name) {
+        if (!(entry.name in this.defined))
+          this.defined[entry.name] = entry;
+
+        if (curMeta)
+          curMeta.bundle = true;
+      }
+      // anonymous register
+      if (!entry.name || load && entry.name == load.name) {
+        if (!curMeta)
+          throw new TypeError('Unexpected anonymous System.register call.');
+        if (curMeta.entry) {
+          if (curMeta.format == 'register')
+            throw new Error('Multiple anonymous System.register calls in module ' + load.name + '. If loading a bundle, ensure all the System.register calls are named.');
+          else
+            throw new Error('Module ' + load.name + ' interpreted as ' + curMeta.format + ' module format, but called System.register.');
+        }
+        if (!curMeta.format)
+          curMeta.format = 'register';
+        curMeta.entry = entry;
+      }
+    };
+  });
+
+  hookConstructor(function(constructor) {
+    return function() {
+      constructor.call(this);
+
+      this.defined = {};
+      this._loader.moduleRecords = {};
+    };
+  });
+
+  function buildGroups(entry, loader, groups) {
+    groups[entry.groupIndex] = groups[entry.groupIndex] || [];
+
+    if (indexOf.call(groups[entry.groupIndex], entry) != -1)
+      return;
+
+    groups[entry.groupIndex].push(entry);
+
+    for (var i = 0, l = entry.normalizedDeps.length; i < l; i++) {
+      var depName = entry.normalizedDeps[i];
+      var depEntry = loader.defined[depName];
+      
+      // not in the registry means already linked / ES6
+      if (!depEntry || depEntry.evaluated)
+        continue;
+      
+      // now we know the entry is in our unlinked linkage group
+      var depGroupIndex = entry.groupIndex + (depEntry.declarative != entry.declarative);
+
+      // the group index of an entry is always the maximum
+      if (depEntry.groupIndex === null || depEntry.groupIndex < depGroupIndex) {
+        
+        // if already in a group, remove from the old group
+        if (depEntry.groupIndex !== null) {
+          groups[depEntry.groupIndex].splice(indexOf.call(groups[depEntry.groupIndex], depEntry), 1);
+
+          // if the old group is empty, then we have a mixed depndency cycle
+          if (groups[depEntry.groupIndex].length == 0)
+            throw new Error("Mixed dependency cycle detected");
+        }
+
+        depEntry.groupIndex = depGroupIndex;
+      }
+
+      buildGroups(depEntry, loader, groups);
+    }
+  }
+
+  function link(name, loader) {
+    var startEntry = loader.defined[name];
+
+    // skip if already linked
+    if (startEntry.module)
+      return;
+
+    startEntry.groupIndex = 0;
+
+    var groups = [];
+
+    buildGroups(startEntry, loader, groups);
+
+    var curGroupDeclarative = !!startEntry.declarative == groups.length % 2;
+    for (var i = groups.length - 1; i >= 0; i--) {
+      var group = groups[i];
+      for (var j = 0; j < group.length; j++) {
+        var entry = group[j];
+
+        // link each group
+        if (curGroupDeclarative)
+          linkDeclarativeModule(entry, loader);
+        else
+          linkDynamicModule(entry, loader);
+      }
+      curGroupDeclarative = !curGroupDeclarative; 
+    }
+  }
+
+  // module binding records
+  function Module() {}
+  defineProperty(Module, 'toString', {
+    value: function() {
+      return 'Module';
+    }
+  });
+
+  function getOrCreateModuleRecord(name, moduleRecords) {
+    return moduleRecords[name] || (moduleRecords[name] = {
+      name: name,
+      dependencies: [],
+      exports: new Module(), // start from an empty module and extend
+      importers: []
+    });
+  }
+
+  function linkDeclarativeModule(entry, loader) {
+    // only link if already not already started linking (stops at circular)
+    if (entry.module)
+      return;
+
+    var moduleRecords = loader._loader.moduleRecords;
+    var module = entry.module = getOrCreateModuleRecord(entry.name, moduleRecords);
+    var exports = entry.module.exports;
+
+    var declaration = entry.declare.call(__global, function(name, value) {
+      module.locked = true;
+
+      if (typeof name == 'object') {
+        for (var p in name)
+          exports[p] = name[p];
+      }
+      else {
+        exports[name] = value;
+      }
+
+      for (var i = 0, l = module.importers.length; i < l; i++) {
+        var importerModule = module.importers[i];
+        if (!importerModule.locked) {
+          var importerIndex = indexOf.call(importerModule.dependencies, module);
+          importerModule.setters[importerIndex](exports);
+        }
+      }
+
+      module.locked = false;
+      return value;
+    }, entry.name);
+    
+    module.setters = declaration.setters;
+    module.execute = declaration.execute;
+
+    if (!module.setters || !module.execute) {
+      throw new TypeError('Invalid System.register form for ' + entry.name);
+    }
+
+    // now link all the module dependencies
+    for (var i = 0, l = entry.normalizedDeps.length; i < l; i++) {
+      var depName = entry.normalizedDeps[i];
+      var depEntry = loader.defined[depName];
+      var depModule = moduleRecords[depName];
+
+      // work out how to set depExports based on scenarios...
+      var depExports;
+
+      if (depModule) {
+        depExports = depModule.exports;
+      }
+      // dynamic, already linked in our registry
+      else if (depEntry && !depEntry.declarative) {
+        depExports = depEntry.esModule;
+      }
+      // in the loader registry
+      else if (!depEntry) {
+        depExports = loader.get(depName);
+      }
+      // we have an entry -> link
+      else {
+        linkDeclarativeModule(depEntry, loader);
+        depModule = depEntry.module;
+        depExports = depModule.exports;
+      }
+
+      // only declarative modules have dynamic bindings
+      if (depModule && depModule.importers) {
+        depModule.importers.push(module);
+        module.dependencies.push(depModule);
+      }
+      else {
+        module.dependencies.push(null);
+      }
+      
+      // run setters for all entries with the matching dependency name
+      var originalIndices = entry.originalIndices[i];
+      for (var j = 0, len = originalIndices.length; j < len; ++j) {
+        var index = originalIndices[j];
+        if (module.setters[index]) {
+          module.setters[index](depExports);
+        }
+      }
+    }
+  }
+
+  // An analog to loader.get covering execution of all three layers (real declarative, simulated declarative, simulated dynamic)
+  function getModule(name, loader) {
+    var exports;
+    var entry = loader.defined[name];
+
+    if (!entry) {
+      exports = loader.get(name);
+      if (!exports)
+        throw new Error('Unable to load dependency ' + name + '.');
+    }
+
+    else {
+      if (entry.declarative)
+        ensureEvaluated(name, [], loader);
+    
+      else if (!entry.evaluated)
+        linkDynamicModule(entry, loader);
+
+      exports = entry.module.exports;
+    }
+
+    if ((!entry || entry.declarative) && exports && exports.__useDefault)
+      return exports['default'];
+    
+    return exports;
+  }
+
+  function linkDynamicModule(entry, loader) {
+    if (entry.module)
+      return;
+
+    var exports = {};
+
+    var module = entry.module = { exports: exports, id: entry.name };
+
+    // AMD requires execute the tree first
+    if (!entry.executingRequire) {
+      for (var i = 0, l = entry.normalizedDeps.length; i < l; i++) {
+        var depName = entry.normalizedDeps[i];
+        // we know we only need to link dynamic due to linking algorithm
+        var depEntry = loader.defined[depName];
+        if (depEntry)
+          linkDynamicModule(depEntry, loader);
+      }
+    }
+
+    // now execute
+    entry.evaluated = true;
+    var output = entry.execute.call(__global, function(name) {
+      for (var i = 0, l = entry.deps.length; i < l; i++) {
+        if (entry.deps[i] != name)
+          continue;
+        return getModule(entry.normalizedDeps[i], loader);
+      }
+      throw new Error('Module ' + name + ' not declared as a dependency.');
+    }, exports, module);
+    
+    if (output)
+      module.exports = output;
+
+    // create the esModule object, which allows ES6 named imports of dynamics
+    exports = module.exports;
+
+    // __esModule flag treats as already-named
+    if (exports && exports.__esModule)
+      entry.esModule = exports;
+    // set module as 'default' export, then fake named exports by iterating properties
+    else if (entry.esmExports && exports !== __global)
+      entry.esModule = getESModule(exports);
+    // just use the 'default' export
+    else
+      entry.esModule = { 'default': exports };
+  }
+
+  /*
+   * Given a module, and the list of modules for this current branch,
+   *  ensure that each of the dependencies of this module is evaluated
+   *  (unless one is a circular dependency already in the list of seen
+   *  modules, in which case we execute it)
+   *
+   * Then we evaluate the module itself depth-first left to right 
+   * execution to match ES6 modules
+   */
+  function ensureEvaluated(moduleName, seen, loader) {
+    var entry = loader.defined[moduleName];
+
+    // if already seen, that means it's an already-evaluated non circular dependency
+    if (!entry || entry.evaluated || !entry.declarative)
+      return;
+
+    // this only applies to declarative modules which late-execute
+
+    seen.push(moduleName);
+
+    for (var i = 0, l = entry.normalizedDeps.length; i < l; i++) {
+      var depName = entry.normalizedDeps[i];
+      if (indexOf.call(seen, depName) == -1) {
+        if (!loader.defined[depName])
+          loader.get(depName);
+        else
+          ensureEvaluated(depName, seen, loader);
+      }
+    }
+
+    if (entry.evaluated)
+      return;
+
+    entry.evaluated = true;
+    entry.module.execute.call(__global);
+  }
+
+  // override the delete method to also clear the register caches
+  hook('delete', function(del) {
+    return function(name) {
+      delete this._loader.moduleRecords[name];
+      delete this.defined[name];
+      return del.call(this, name);
+    };
+  });
+
+  hook('fetch', function(fetch) {
+    return function(load) {
+      if (this.defined[load.name]) {
+        load.metadata.format = 'defined';
+        return '';
+      }
+      
+      if (load.metadata.format == 'register' && !load.metadata.authorization && load.metadata.scriptLoad !== false)
+        load.metadata.scriptLoad = true;
+
+      load.metadata.deps = load.metadata.deps || [];
+      
+      return fetch.call(this, load);
+    };
+  });
+
+  hook('translate', function(translate) {
+    // we run the meta detection here (register is after meta)
+    return function(load) {
+      load.metadata.deps = load.metadata.deps || [];
+      return Promise.resolve(translate.call(this, load)).then(function(source) {
+        // run detection for register format
+        if (load.metadata.format == 'register' || !load.metadata.format && detectRegisterFormat(load.source))
+          load.metadata.format = 'register';
+        return source;
+      });
+    };
+  });
+
+  hook('instantiate', function(instantiate) {
+    return function(load) {
+      if (load.metadata.format == 'detect')
+        load.metadata.format = undefined;
+
+      // assumes previous instantiate is sync
+      // (core json support)
+      instantiate.call(this, load);
+
+      var loader = this;
+
+      var entry;
+
+      // first we check if this module has already been defined in the registry
+      if (loader.defined[load.name]) {
+        entry = loader.defined[load.name];
+        // don't support deps for ES modules
+        if (!entry.declarative)
+          entry.deps = entry.deps.concat(load.metadata.deps);
+      }
+
+      // picked up already by an anonymous System.register script injection
+      // or via the dynamic formats
+      else if (load.metadata.entry) {
+        entry = load.metadata.entry;
+        entry.deps = entry.deps.concat(load.metadata.deps);
+      }
+
+      // Contains System.register calls
+      // (dont run bundles in the builder)
+      else if (!(loader.builder && load.metadata.bundle) 
+          && (load.metadata.format == 'register' || load.metadata.format == 'esm' || load.metadata.format == 'es6')) {
+        
+        if (typeof __exec != 'undefined')
+          __exec.call(loader, load);
+
+        if (!load.metadata.entry && !load.metadata.bundle)
+          throw new Error(load.name + ' detected as ' + load.metadata.format + ' but didn\'t execute.');
+
+        entry = load.metadata.entry;
+
+        // support metadata deps for System.register
+        if (entry && load.metadata.deps)
+          entry.deps = entry.deps.concat(load.metadata.deps);
+      }
+
+      // named bundles are just an empty module
+      if (!entry) {
+        entry = createEntry();
+        entry.deps = load.metadata.deps;
+        entry.execute = function() {};
+      }
+
+      // place this module onto defined for circular references
+      loader.defined[load.name] = entry;
+      
+      var grouped = group(entry.deps);
+      
+      entry.deps = grouped.names;
+      entry.originalIndices = grouped.indices;
+      entry.name = load.name;
+      entry.esmExports = load.metadata.esmExports !== false;
+
+      // first, normalize all dependencies
+      var normalizePromises = [];
+      for (var i = 0, l = entry.deps.length; i < l; i++)
+        normalizePromises.push(Promise.resolve(loader.normalize(entry.deps[i], load.name)));
+
+      return Promise.all(normalizePromises).then(function(normalizedDeps) {
+
+        entry.normalizedDeps = normalizedDeps;
+
+        return {
+          deps: entry.deps,
+          execute: function() {
+            // recursively ensure that the module and all its 
+            // dependencies are linked (with dependency group handling)
+            link(load.name, loader);
+
+            // now handle dependency execution in correct order
+            ensureEvaluated(load.name, [], loader);
+
+            // remove from the registry
+            loader.defined[load.name] = undefined;
+
+            // return the defined module object
+            return loader.newModule(entry.declarative ? entry.module.exports : entry.esModule);
+          }
+        };
+      });
+    };
+  });
+})();
+hook('reduceRegister_', function(reduceRegister) {
+  return function(load, register) {
+    if (register || !load.metadata.exports)
+      return reduceRegister.call(this, load, register);
+
+    load.metadata.format = 'global';
+    var entry = load.metadata.entry = createEntry();
+    entry.deps = load.metadata.deps;
+    var globalValue = readMemberExpression(load.metadata.exports, __global);
+    entry.execute = function() {
+      return globalValue;
+    };
+  };
+});
+
+hookConstructor(function(constructor) {
+  return function() {
+    var loader = this;
+    constructor.call(loader);
+
+    var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+    // bare minimum ignores for IE8
+    var ignoredGlobalProps = ['_g', 'sessionStorage', 'localStorage', 'clipboardData', 'frames', 'frameElement', 'external', 
+      'mozAnimationStartTime', 'webkitStorageInfo', 'webkitIndexedDB', 'mozInnerScreenY', 'mozInnerScreenX'];
+
+    var globalSnapshot;
+
+    function forEachGlobal(callback) {
+      if (Object.keys)
+        Object.keys(__global).forEach(callback);
+      else
+        for (var g in __global) {
+          if (!hasOwnProperty.call(__global, g))
+            continue;
+          callback(g);
+        }
+    }
+
+    function forEachGlobalValue(callback) {
+      forEachGlobal(function(globalName) {
+        if (indexOf.call(ignoredGlobalProps, globalName) != -1)
+          return;
+        try {
+          var value = __global[globalName];
+        }
+        catch (e) {
+          ignoredGlobalProps.push(globalName);
+        }
+        callback(globalName, value);
+      });
+    }
+
+    loader.set('@@global-helpers', loader.newModule({
+      prepareGlobal: function(moduleName, exportName, globals) {
+        // disable module detection
+        var curDefine = __global.define;
+        
+        __global.define = undefined;
+        __global.exports = undefined;
+        if (__global.module && __global.module.exports)
+          __global.module = undefined;
+
+        // set globals
+        var oldGlobals;
+        if (globals) {
+          oldGlobals = {};
+          for (var g in globals) {
+            oldGlobals[g] = __global[g];
+            __global[g] = globals[g];
+          }
+        }
+
+        // store a complete copy of the global object in order to detect changes
+        if (!exportName) {
+          globalSnapshot = {};
+
+          forEachGlobalValue(function(name, value) {
+            globalSnapshot[name] = value;
+          });
+        }
+
+        // return function to retrieve global
+        return function() {
+          var globalValue;
+
+          if (exportName) {
+            globalValue = readMemberExpression(exportName, __global);
+          }
+          else {
+            var singleGlobal;
+            var multipleExports;
+            var exports = {};
+
+            forEachGlobalValue(function(name, value) {
+              if (globalSnapshot[name] === value)
+                return;
+              if (typeof value == 'undefined')
+                return;
+              exports[name] = value;
+
+              if (typeof singleGlobal != 'undefined') {
+                if (!multipleExports && singleGlobal !== value)
+                  multipleExports = true;
+              }
+              else {
+                singleGlobal = value;
+              }
+            });
+            globalValue = multipleExports ? exports : singleGlobal;
+          }
+
+          // revert globals
+          if (oldGlobals) {
+            for (var g in oldGlobals)
+              __global[g] = oldGlobals[g];
+          }
+          __global.define = curDefine;
+
+          return globalValue;
+        };
+      }
+    }));
+  };
+});
+hookConstructor(function(constructor) {
+  return function() {
+    var loader = this;
+    constructor.call(loader);
+
+    if (typeof window != 'undefined' && typeof document != 'undefined' && window.location)
+      var windowOrigin = location.protocol + '//' + location.hostname + (location.port ? ':' + location.port : '');
+
+    loader.set('@@cjs-helpers', loader.newModule({
+      getPathVars: function(moduleId) {
+        // remove any plugin syntax
+        var pluginIndex = moduleId.lastIndexOf('!');
+        var filename;
+        if (pluginIndex != -1)
+          filename = moduleId.substr(0, pluginIndex);
+        else
+          filename = moduleId;
+
+        var dirname = filename.split('/');
+        dirname.pop();
+        dirname = dirname.join('/');
+
+        if (filename.substr(0, 8) == 'file:///') {
+          filename = filename.substr(7);
+          dirname = dirname.substr(7);
+
+          // on windows remove leading '/'
+          if (isWindows) {
+            filename = filename.substr(1);
+            dirname = dirname.substr(1);
+          }
+        }
+        else if (windowOrigin && filename.substr(0, windowOrigin.length) === windowOrigin) {
+          filename = filename.substr(windowOrigin.length);
+          dirname = dirname.substr(windowOrigin.length);
+        }
+
+        return {
+          filename: filename,
+          dirname: dirname
+        };
+      }
+    }))
+  };
+});/*
+ * AMD Helper function module
+ * Separated into its own file as this is the part needed for full AMD support in SFX builds
+ * NB since implementations have now diverged this can be merged back with amd.js
+ */
+hookConstructor(function(constructor) {
+  return function() {
+    var loader = this;
+    constructor.call(this);
+
+    var commentRegEx = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg;
+    var cjsRequirePre = "(?:^|[^$_a-zA-Z\\xA0-\\uFFFF.])";
+    var cjsRequirePost = "\\s*\\(\\s*(\"([^\"]+)\"|'([^']+)')\\s*\\)";
+    var fnBracketRegEx = /\(([^\)]*)\)/;
+    var wsRegEx = /^\s+|\s+$/g;
+    
+    var requireRegExs = {};
+
+    function getCJSDeps(source, requireIndex) {
+
+      // remove comments
+      source = source.replace(commentRegEx, '');
+
+      // determine the require alias
+      var params = source.match(fnBracketRegEx);
+      var requireAlias = (params[1].split(',')[requireIndex] || 'require').replace(wsRegEx, '');
+
+      // find or generate the regex for this requireAlias
+      var requireRegEx = requireRegExs[requireAlias] || (requireRegExs[requireAlias] = new RegExp(cjsRequirePre + requireAlias + cjsRequirePost, 'g'));
+
+      requireRegEx.lastIndex = 0;
+
+      var deps = [];
+
+      var match;
+      while (match = requireRegEx.exec(source))
+        deps.push(match[2] || match[3]);
+
+      return deps;
+    }
+
+    /*
+      AMD-compatible require
+      To copy RequireJS, set window.require = window.requirejs = loader.amdRequire
+    */
+    function require(names, callback, errback, referer) {
+      // in amd, first arg can be a config object... we just ignore
+      if (typeof names == 'object' && !(names instanceof Array))
+        return require.apply(null, Array.prototype.splice.call(arguments, 1, arguments.length - 1));
+
+      // amd require
+      if (typeof names == 'string' && typeof callback == 'function')
+        names = [names];
+      if (names instanceof Array) {
+        var dynamicRequires = [];
+        for (var i = 0; i < names.length; i++)
+          dynamicRequires.push(loader['import'](names[i], referer));
+        Promise.all(dynamicRequires).then(function(modules) {
+          if (callback)
+            callback.apply(null, modules);
+        }, errback);
+      }
+
+      // commonjs require
+      else if (typeof names == 'string') {
+        var module = loader.get(loader.decanonicalize(names, referer));
+        if (!module)
+          throw new Error('Module not already loaded loading "' + names + '" from "' + referer + '".');
+        return module.__useDefault ? module['default'] : module;
+      }
+
+      else
+        throw new TypeError('Invalid require');
+    }
+
+    function define(name, deps, factory) {
+      if (typeof name != 'string') {
+        factory = deps;
+        deps = name;
+        name = null;
+      }
+      if (!(deps instanceof Array)) {
+        factory = deps;
+        deps = ['require', 'exports', 'module'].splice(0, factory.length);
+      }
+
+      if (typeof factory != 'function')
+        factory = (function(factory) {
+          return function() { return factory; }
+        })(factory);
+
+      // in IE8, a trailing comma becomes a trailing undefined entry
+      if (deps[deps.length - 1] === undefined)
+        deps.pop();
+
+      // remove system dependencies
+      var requireIndex, exportsIndex, moduleIndex;
+      
+      if ((requireIndex = indexOf.call(deps, 'require')) != -1) {
+        
+        deps.splice(requireIndex, 1);
+
+        // only trace cjs requires for non-named
+        // named defines assume the trace has already been done
+        if (!name)
+          deps = deps.concat(getCJSDeps(factory.toString(), requireIndex));
+      }
+
+      if ((exportsIndex = indexOf.call(deps, 'exports')) != -1)
+        deps.splice(exportsIndex, 1);
+      
+      if ((moduleIndex = indexOf.call(deps, 'module')) != -1)
+        deps.splice(moduleIndex, 1);
+
+      function execute(req, exports, module) {
+        var depValues = [];
+        for (var i = 0; i < deps.length; i++)
+          depValues.push(req(deps[i]));
+
+        module.uri = module.id;
+
+        module.config = function() {};
+
+        // add back in system dependencies
+        if (moduleIndex != -1)
+          depValues.splice(moduleIndex, 0, module);
+        
+        if (exportsIndex != -1)
+          depValues.splice(exportsIndex, 0, exports);
+        
+        if (requireIndex != -1) {
+          function contextualRequire(names, callback, errback) {
+            if (typeof names == 'string' && typeof callback != 'function')
+              return req(names);
+            return require.call(loader, names, callback, errback, module.id);
+          }
+          contextualRequire.toUrl = function(name) {
+            // normalize without defaultJSExtensions
+            var defaultJSExtension = loader.defaultJSExtensions && name.substr(name.length - 3, 3) != '.js';
+            var url = loader.decanonicalize(name, module.id);
+            if (defaultJSExtension && url.substr(url.length - 3, 3) == '.js')
+              url = url.substr(0, url.length - 3);
+            return url;
+          };
+          depValues.splice(requireIndex, 0, contextualRequire);
+        }
+
+        // set global require to AMD require
+        var curRequire = __global.require;
+        __global.require = require;
+
+        var output = factory.apply(exportsIndex == -1 ? __global : exports, depValues);
+
+        __global.require = curRequire;
+
+        if (typeof output == 'undefined' && module)
+          output = module.exports;
+
+        if (typeof output != 'undefined')
+          return output;
+      }
+
+      var entry = createEntry();
+      entry.name = name && (loader.decanonicalize || loader.normalize).call(loader, name);
+      entry.deps = deps;
+      entry.execute = execute;
+
+      loader.pushRegister_({
+        amd: true,
+        entry: entry
+      });
+    }
+    define.amd = {};
+
+    // reduction function to attach defines to a load record
+    hook('reduceRegister_', function(reduceRegister) {
+      return function(load, register) {
+        // only handle AMD registers here
+        if (!register || !register.amd)
+          return reduceRegister.call(this, load, register);
+
+        var curMeta = load && load.metadata;
+        var entry = register.entry;
+
+        if (curMeta)
+          curMeta.format = 'amd';
+
+        // anonymous define
+        if (!entry.name) {
+          if (!curMeta)
+            throw new TypeError('Unexpected anonymous AMD define.');
+
+          // already defined anonymously -> throw
+          if (curMeta.entry)
+            throw new TypeError('Multiple defines for anonymous module ' + load.name);
+          
+          curMeta.entry = entry;
+        }
+        // named define
+        else {
+          // if we don't have any other defines, 
+          // then let this be an anonymous define
+          // this is just to support single modules of the form:
+          // define('jquery')
+          // still loading anonymously
+          // because it is done widely enough to be useful
+          // as soon as there is more than one define, this gets removed though
+          if (curMeta) {
+            if (!curMeta.entry && !curMeta.bundle)
+              curMeta.entry = entry;
+            else
+              curMeta.entry = undefined;
+
+            // note this is now a bundle
+            curMeta.bundle = true;
+          }
+
+          // define the module through the register registry
+          if (!(entry.name in this.defined))
+            this.defined[entry.name] = entry;
+        }
+      };
+    });
+
+    // adds define as a global (potentially just temporarily)
+    function createDefine() {
+      // ensure no NodeJS environment detection
+      var oldModule = __global.module;
+      var oldExports = __global.exports;
+      var oldDefine = __global.define;
+
+      __global.module = undefined;
+      __global.exports = undefined;
+      __global.define = define;
+
+      return function() {
+        __global.define = oldDefine;
+        __global.module = oldModule;
+        __global.exports = oldExports;
+      };
+    }
+
+    loader.set('@@amd-helpers', loader.newModule({
+      createDefine: createDefine,
+      require: require,
+      define: define
+    }));
+    loader.amdDefine = define;
+    loader.amdRequire = require;
+  };
+});/*
+  SystemJS Loader Plugin Support
+
+  Supports plugin loader syntax with "!", or via metadata.loader
+
+  The plugin name is loaded as a module itself, and can override standard loader hooks
+  for the plugin resource. See the plugin section of the systemjs readme.
+*/
+
+(function() {
+  function getParentName(loader, parentName) {
+    // if parent is a plugin, normalize against the parent plugin argument only
+    if (parentName) {
+      var parentPluginIndex;
+      if (loader.pluginFirst) {
+        if ((parentPluginIndex = parentName.lastIndexOf('!')) != -1)
+          return parentName.substr(parentPluginIndex + 1);
+      }
+      else {
+        if ((parentPluginIndex = parentName.indexOf('!')) != -1)
+          return parentName.substr(0, parentPluginIndex);
+      }
+
+      return parentName;
+    }
+  }
+
+  function parsePlugin(loader, name) {
+    var argumentName;
+    var pluginName;
+
+    var pluginIndex = name.lastIndexOf('!');
+
+    if (pluginIndex == -1)
+      return;
+
+    if (loader.pluginFirst) {
+      argumentName = name.substr(pluginIndex + 1);
+      pluginName = name.substr(0, pluginIndex);
+    }
+    else {
+      argumentName = name.substr(0, pluginIndex);
+      pluginName = name.substr(pluginIndex + 1) || argumentName.substr(argumentName.lastIndexOf('.') + 1);
+    }
+
+    return {
+      argument: argumentName,
+      plugin: pluginName
+    };
+  }
+
+  // put name back together after parts have been normalized
+  function combinePluginParts(loader, argumentName, pluginName, defaultExtension) {
+    if (defaultExtension && argumentName.substr(argumentName.length - 3, 3) == '.js')
+      argumentName = argumentName.substr(0, argumentName.length - 3);
+
+    if (loader.pluginFirst) {
+      return pluginName + '!' + argumentName;
+    }
+    else {
+      return argumentName + '!' + pluginName;
+    }
+  }
+
+  // note if normalize will add a default js extension
+  // if so, remove for backwards compat
+  // this is strange and sucks, but will be deprecated
+  function checkDefaultExtension(loader, arg) {
+    return loader.defaultJSExtensions && arg.substr(arg.length - 3, 3) != '.js'; 
+  }
+
+  function createNormalizeSync(normalizeSync) {
+    return function(name, parentName, isPlugin) {
+      var loader = this;
+      
+      parentName = getParentName(this, parentName);
+      var parsed = parsePlugin(loader, name);
+
+      if (!parsed)
+        return normalizeSync.call(this, name, parentName, isPlugin);
+
+      // if this is a plugin, normalize the plugin name and the argument
+      var argumentName = loader.normalizeSync(parsed.argument, parentName, true);
+      var pluginName = loader.normalizeSync(parsed.plugin, parentName, true);
+      return combinePluginParts(loader, argumentName, pluginName, checkDefaultExtension(loader, parsed.argument));
+    };
+  }
+  
+  hook('decanonicalize', createNormalizeSync);
+  hook('normalizeSync', createNormalizeSync);
+
+  hook('normalize', function(normalize) {
+    return function(name, parentName, isPlugin) {
+      var loader = this;
+
+      parentName = getParentName(this, parentName);
+
+      var parsed = parsePlugin(loader, name);
+
+      if (!parsed)
+        return normalize.call(loader, name, parentName, isPlugin);
+
+      return Promise.all([
+        loader.normalize(parsed.argument, parentName, true),
+        loader.normalize(parsed.plugin, parentName, true)
+      ])
+      .then(function(normalized) {
+        return combinePluginParts(loader, normalized[0], normalized[1], checkDefaultExtension(loader, parsed.argument));
+      });
+    }
+  });
+
+  hook('locate', function(locate) {
+    return function(load) {
+      var loader = this;
+
+      var name = load.name;
+
+      // plugin syntax
+      var pluginSyntaxIndex;
+      if (loader.pluginFirst) {
+        if ((pluginSyntaxIndex = name.indexOf('!')) != -1) {
+          load.metadata.loader = name.substr(0, pluginSyntaxIndex);
+          load.name = name.substr(pluginSyntaxIndex + 1);
+        }
+      }
+      else {
+        if ((pluginSyntaxIndex = name.lastIndexOf('!')) != -1) {
+          load.metadata.loader = name.substr(pluginSyntaxIndex + 1);
+          load.name = name.substr(0, pluginSyntaxIndex);
+        }
+      }
+
+      return locate.call(loader, load)
+      .then(function(address) {
+        var plugin = load.metadata.loader;
+
+        if (!plugin)
+          return address;
+
+        // only fetch the plugin itself if this name isn't defined
+        if (loader.defined && loader.defined[name])
+          return address;
+
+        var pluginLoader = loader.pluginLoader || loader;
+
+        // load the plugin module and run standard locate
+        return pluginLoader['import'](plugin)
+        .then(function(loaderModule) {
+          // store the plugin module itself on the metadata
+          load.metadata.loaderModule = loaderModule;
+
+          load.address = address;
+          if (loaderModule.locate)
+            return loaderModule.locate.call(loader, load);
+
+          return address;
+        });
+      });
+    };
+  });
+
+  hook('fetch', function(fetch) {
+    return function(load) {
+      var loader = this;
+      if (load.metadata.loaderModule && load.metadata.loaderModule.fetch && load.metadata.format != 'defined') {
+        load.metadata.scriptLoad = false;
+        return load.metadata.loaderModule.fetch.call(loader, load, function(load) {
+          return fetch.call(loader, load);
+        });
+      }
+      else {
+        return fetch.call(loader, load);
+      }
+    };
+  });
+
+  hook('translate', function(translate) {
+    return function(load) {
+
+      /*
+       * Source map sanitization for load.metadata.sourceMap
+       * Used to set browser and build-level source maps for
+       * translated sources in a general way.
+       *
+       * This isn't plugin-specific, but can't go anywhere else for now
+       * As it is post-translate
+       */
+      var sourceMap = load.metadata.sourceMap;
+
+      // if an object not a JSON string do sanitizing
+      if (sourceMap && typeof sourceMap == 'object') {
+        var originalName = load.name.split('!')[0];
+        
+        // force set the filename of the original file
+        sourceMap.file = originalName + '!transpiled';
+
+        // force set the sources list if only one source
+        if (!sourceMap.sources || sourceMap.sources.length == 1)
+          sourceMap.sources = [originalName];
+        load.metadata.sourceMap = JSON.stringify(sourceMap);
+      }
+
+      var loader = this;
+      if (load.metadata.loaderModule && load.metadata.loaderModule.translate && load.metadata.format != 'defined') {
+        return Promise.resolve(load.metadata.loaderModule.translate.call(loader, load)).then(function(result) {
+          // NB we should probably enforce a string output
+          if (typeof result == 'string')
+            load.source = result;
+          return translate.call(loader, load);
+        });
+      }
+      else {
+        return translate.call(loader, load);
+      }
+    };
+  });
+
+  hook('instantiate', function(instantiate) {
+    return function(load) {
+      var loader = this;
+
+      if (load.metadata.loaderModule && load.metadata.loaderModule.instantiate && !loader.builder && load.metadata.format != 'defined')
+        return Promise.resolve(load.metadata.loaderModule.instantiate.call(loader, load)).then(function(result) {
+          load.metadata.entry = createEntry();
+          load.metadata.entry.execute = function() {
+            return result;
+          }
+          load.metadata.entry.deps = load.metadata.deps;
+          load.metadata.format = 'defined';
+          return instantiate.call(loader, load);
+        });
+      else
+        return instantiate.call(loader, load);
+    };
+  });
+
+})();/*
+ * Conditions Extension
+ *
+ *   Allows a condition module to alter the resolution of an import via syntax:
+ *
+ *     import $ from 'jquery/#{browser}';
+ *
+ *   Will first load the module 'browser' via `SystemJS.import('browser')` and 
+ *   take the default export of that module.
+ *   If the default export is not a string, an error is thrown.
+ * 
+ *   We then substitute the string into the require to get the conditional resolution
+ *   enabling environment-specific variations like:
+ * 
+ *     import $ from 'jquery/ie'
+ *     import $ from 'jquery/firefox'
+ *     import $ from 'jquery/chrome'
+ *     import $ from 'jquery/safari'
+ *
+ *   It can be useful for a condition module to define multiple conditions.
+ *   This can be done via the `|` modifier to specify an export member expression:
+ *
+ *     import 'jquery/#{./browser.js|grade.version}'
+ *
+ *   Where the `grade` export `version` member in the `browser.js` module  is substituted.
+ *
+ *
+ * Boolean Conditionals
+ *
+ *   For polyfill modules, that are used as imports but have no module value,
+ *   a binary conditional allows a module not to be loaded at all if not needed:
+ *
+ *     import 'es5-shim#?./conditions.js|needs-es5shim'
+ *
+ *   These conditions can also be negated via:
+ *     
+ *     import 'es5-shim#?~./conditions.js|es6'
+ *
+ */
+
+  function parseCondition(condition) {
+    var conditionExport, conditionModule, negation;
+
+    var negation = condition[0] == '~';
+    var conditionExportIndex = condition.lastIndexOf('|');
+    if (conditionExportIndex != -1) {
+      conditionExport = condition.substr(conditionExportIndex + 1);
+      conditionModule = condition.substr(negation, conditionExportIndex - negation) || '@system-env';
+    }
+    else {
+      conditionExport = null;
+      conditionModule = condition.substr(negation);
+    }
+
+    return {
+      module: conditionModule,
+      prop: conditionExport,
+      negate: negation
+    };
+  }
+
+  function serializeCondition(conditionObj) {
+    return (conditionObj.negate ? '~' : '') + conditionObj.module + (conditionObj.prop ? '|' + conditionObj.prop : '');
+  }
+
+  function resolveCondition(conditionObj, parentName, bool) {
+    return this['import'](conditionObj.module, parentName)
+    .then(function(m) {
+      if (conditionObj.prop)
+        m = readMemberExpression(conditionObj.prop, m);
+      else if (typeof m == 'object' && m + '' == 'Module')
+        m = m['default'];
+
+      return conditionObj.negate ? !m : m;
+    });
+  }
+
+  var interpolationRegEx = /#\{[^\}]+\}/;
+  function interpolateConditional(name, parentName) {
+    // first we normalize the conditional
+    var conditionalMatch = name.match(interpolationRegEx);
+
+    if (!conditionalMatch)
+      return Promise.resolve(name);
+
+    var conditionObj = parseCondition(conditionalMatch[0].substr(2, conditionalMatch[0].length - 3));
+
+    // in builds, return normalized conditional
+    if (this.builder)
+      return this['normalize'](conditionObj.module, parentName)
+      .then(function(conditionModule) {
+        conditionObj.module = conditionModule;
+        return name.replace(interpolationRegEx, '#{' + serializeCondition(conditionObj) + '}');
+      });
+
+    return resolveCondition.call(this, conditionObj, parentName, false)
+    .then(function(conditionValue) {
+      if (typeof conditionValue !== 'string')
+        throw new TypeError('The condition value for ' + name + ' doesn\'t resolve to a string.');
+
+      if (conditionValue.indexOf('/') != -1)
+        throw new TypeError('Unabled to interpolate conditional ' + name + (parentName ? ' in ' + parentName : '') + '\n\tThe condition value ' + conditionValue + ' cannot contain a "/" separator.');
+
+      return name.replace(interpolationRegEx, conditionValue);
+    });
+  }
+
+  function booleanConditional(name, parentName) {
+    // first we normalize the conditional
+    var booleanIndex = name.lastIndexOf('#?');
+
+    if (booleanIndex == -1)
+      return Promise.resolve(name);
+
+    var conditionObj = parseCondition(name.substr(booleanIndex + 2));
+
+    // in builds, return normalized conditional
+    if (this.builder)
+      return this['normalize'](conditionObj.module, parentName)
+      .then(function(conditionModule) {
+        conditionObj.module = conditionModule;
+        return name.substr(0, booleanIndex) + '#?' + serializeCondition(conditionObj);
+      });
+
+    return resolveCondition.call(this, conditionObj, parentName, true)
+    .then(function(conditionValue) {
+      return conditionValue ? name.substr(0, booleanIndex) : '@empty';
+    });
+  }
+
+  // normalizeSync does not parse conditionals at all although it could
+  hook('normalize', function(normalize) {
+    return function(name, parentName, parentAddress) {
+      var loader = this;
+      return booleanConditional.call(loader, name, parentName)
+      .then(function(name) {
+        return normalize.call(loader, name, parentName, parentAddress);
+      })
+      .then(function(normalized) {
+        return interpolateConditional.call(loader, normalized, parentName);
+      });
+    };
+  });
+/*
+ * Alias Extension
+ *
+ * Allows a module to be a plain copy of another module by module name
+ *
+ * SystemJS.meta['mybootstrapalias'] = { alias: 'bootstrap' };
+ *
+ */
+(function() {
+  // aliases
+  hook('fetch', function(fetch) {
+    return function(load) {
+      var alias = load.metadata.alias;
+      var aliasDeps = load.metadata.deps || [];
+      if (alias) {
+        load.metadata.format = 'defined';
+        var entry = createEntry();
+        this.defined[load.name] = entry;
+        entry.declarative = true;
+        entry.deps = aliasDeps.concat([alias]);
+        entry.declare = function(_export) {
+          return {
+            setters: [function(module) {
+              for (var p in module)
+                _export(p, module[p]);
+              if (module.__useDefault)
+                entry.module.exports.__useDefault = true;
+            }],
+            execute: function() {}
+          };
+        };
+        return '';
+      }
+
+      return fetch.call(this, load);
+    };
+  });
+})();/*
+ * Meta Extension
+ *
+ * Sets default metadata on a load record (load.metadata) from
+ * loader.metadata via SystemJS.meta function.
+ *
+ *
+ * Also provides an inline meta syntax for module meta in source.
+ *
+ * Eg:
+ *
+ * loader.meta({
+ *   'my/module': { deps: ['jquery'] }
+ *   'my/*': { format: 'amd' }
+ * });
+ *
+ * Which in turn populates loader.metadata.
+ *
+ * load.metadata.deps and load.metadata.format will then be set
+ * for 'my/module'
+ *
+ * The same meta could be set with a my/module.js file containing:
+ *
+ * my/module.js
+ *   "format amd";
+ *   "deps[] jquery";
+ *   "globals.some value"
+ *   console.log('this is my/module');
+ *
+ * Configuration meta always takes preference to inline meta.
+ *
+ * Multiple matches in wildcards are supported and ammend the meta.
+ *
+ *
+ * The benefits of the function form is that paths are URL-normalized
+ * supporting say
+ *
+ * loader.meta({ './app': { format: 'cjs' } });
+ *
+ * Instead of needing to set against the absolute URL (https://site.com/app.js)
+ *
+ */
+
+(function() {
+
+  hookConstructor(function(constructor) {
+    return function() {
+      this.meta = {};
+      constructor.call(this);
+    };
+  });
+
+  hook('locate', function(locate) {
+    return function(load) {
+      var meta = this.meta;
+      var name = load.name;
+
+      // NB for perf, maybe introduce a fast-path wildcard lookup cache here
+      // which is checked first
+
+      // apply wildcard metas
+      var bestDepth = 0;
+      var wildcardIndex;
+      for (var module in meta) {
+        wildcardIndex = module.indexOf('*');
+        if (wildcardIndex === -1)
+          continue;
+        if (module.substr(0, wildcardIndex) === name.substr(0, wildcardIndex)
+            && module.substr(wildcardIndex + 1) === name.substr(name.length - module.length + wildcardIndex + 1)) {
+          var depth = module.split('/').length;
+          if (depth > bestDepth)
+            bestDepth = depth;
+          extendMeta(load.metadata, meta[module], bestDepth != depth);
+        }
+      }
+
+      // apply exact meta
+      if (meta[name])
+        extendMeta(load.metadata, meta[name]);
+
+      return locate.call(this, load);
+    };
+  });
+
+  // detect any meta header syntax
+  // only set if not already set
+  var metaRegEx = /^(\s*\/\*[^\*]*(\*(?!\/)[^\*]*)*\*\/|\s*\/\/[^\n]*|\s*"[^"]+"\s*;?|\s*'[^']+'\s*;?)+/;
+  var metaPartRegEx = /\/\*[^\*]*(\*(?!\/)[^\*]*)*\*\/|\/\/[^\n]*|"[^"]+"\s*;?|'[^']+'\s*;?/g;
+
+  function setMetaProperty(target, p, value) {
+    var pParts = p.split('.');
+    var curPart;
+    while (pParts.length > 1) {
+      curPart = pParts.shift();
+      target = target[curPart] = target[curPart] || {};
+    }
+    curPart = pParts.shift();
+    if (!(curPart in target))
+      target[curPart] = value;
+  }
+
+  hook('translate', function(translate) {
+    return function(load) {
+      // NB meta will be post-translate pending transpiler conversion to plugins
+      var meta = load.source.match(metaRegEx);
+      if (meta) {
+        var metaParts = meta[0].match(metaPartRegEx);
+
+        for (var i = 0; i < metaParts.length; i++) {
+          var curPart = metaParts[i];
+          var len = curPart.length;
+
+          var firstChar = curPart.substr(0, 1);
+          if (curPart.substr(len - 1, 1) == ';')
+            len--;
+
+          if (firstChar != '"' && firstChar != "'")
+            continue;
+
+          var metaString = curPart.substr(1, curPart.length - 3);
+          var metaName = metaString.substr(0, metaString.indexOf(' '));
+
+          if (metaName) {
+            var metaValue = metaString.substr(metaName.length + 1, metaString.length - metaName.length - 1);
+
+            if (metaName.substr(metaName.length - 2, 2) == '[]') {
+              metaName = metaName.substr(0, metaName.length - 2);
+              load.metadata[metaName] = load.metadata[metaName] || [];
+              load.metadata[metaName].push(metaValue);
+            }
+            else if (load.metadata[metaName] instanceof Array) {
+              // temporary backwards compat for previous "deps" syntax
+              warn.call(this, 'Module ' + load.name + ' contains deprecated "deps ' + metaValue + '" meta syntax.\nThis should be updated to "deps[] ' + metaValue + '" for pushing to array meta.');
+              load.metadata[metaName].push(metaValue);
+            }
+            else {
+              setMetaProperty(load.metadata, metaName, metaValue);
+            }
+          }
+          else {
+            load.metadata[metaString] = true;
+          }
+        }
+      }
+
+      return translate.call(this, load);
+    };
+  });
+})();
+/*
+  System bundles
+
+  Allows a bundle module to be specified which will be dynamically 
+  loaded before trying to load a given module.
+
+  For example:
+  SystemJS.bundles['mybundle'] = ['jquery', 'bootstrap/js/bootstrap']
+
+  Will result in a load to "mybundle" whenever a load to "jquery"
+  or "bootstrap/js/bootstrap" is made.
+
+  In this way, the bundle becomes the request that provides the module
+*/
+
+(function() {
+  // bundles support (just like RequireJS)
+  // bundle name is module name of bundle itself
+  // bundle is array of modules defined by the bundle
+  // when a module in the bundle is requested, the bundle is loaded instead
+  // of the form SystemJS.bundles['mybundle'] = ['jquery', 'bootstrap/js/bootstrap']
+  hookConstructor(function(constructor) {
+    return function() {
+      constructor.call(this);
+      this.bundles = {};
+      this._loader.loadedBundles = {};
+    };
+  });
+
+  // assign bundle metadata for bundle loads
+  hook('locate', function(locate) {
+    return function(load) {
+      var loader = this;
+      var matched = false;
+
+      if (!(load.name in loader.defined))
+        for (var b in loader.bundles) {
+          for (var i = 0; i < loader.bundles[b].length; i++) {
+            var curModule = loader.bundles[b][i];
+
+            if (curModule == load.name) {
+              matched = true;
+              break;
+            }
+
+            // wildcard in bundles does not include / boundaries
+            if (curModule.indexOf('*') != -1) {
+              var parts = curModule.split('*');
+              if (parts.length != 2) {
+                loader.bundles[b].splice(i--, 1);
+                continue;
+              }
+              
+              if (load.name.substring(0, parts[0].length) == parts[0] &&
+                  load.name.substr(load.name.length - parts[1].length, parts[1].length) == parts[1] &&
+                  load.name.substr(parts[0].length, load.name.length - parts[1].length - parts[0].length).indexOf('/') == -1) {
+                matched = true;
+                break;
+              }
+            }
+          }
+
+          if (matched)
+            return loader['import'](b)
+            .then(function() {
+              return locate.call(loader, load);
+            });
+        }
+
+      return locate.call(loader, load);
+    };
+  });
+})();
+/*
+ * Dependency Tree Cache
+ * 
+ * Allows a build to pre-populate a dependency trace tree on the loader of 
+ * the expected dependency tree, to be loaded upfront when requesting the
+ * module, avoinding the n round trips latency of module loading, where 
+ * n is the dependency tree depth.
+ *
+ * eg:
+ * SystemJS.depCache = {
+ *  'app': ['normalized', 'deps'],
+ *  'normalized': ['another'],
+ *  'deps': ['tree']
+ * };
+ * 
+ * SystemJS.import('app') 
+ * // simultaneously starts loading all of:
+ * // 'normalized', 'deps', 'another', 'tree'
+ * // before "app" source is even loaded
+ *
+ */
+
+(function() {
+  hookConstructor(function(constructor) {
+    return function() {
+      constructor.call(this);
+      this.depCache = {};
+    }
+  });
+
+  hook('locate', function(locate) {
+    return function(load) {
+      var loader = this;
+      // load direct deps, in turn will pick up their trace trees
+      var deps = loader.depCache[load.name];
+      if (deps)
+        for (var i = 0; i < deps.length; i++)
+          loader['import'](deps[i], load.name);
+
+      return locate.call(loader, load);
+    };
+  });
+})();
+  
+/*
+ * Script-only addition used for production loader
+ *
+ */
+hookConstructor(function(constructor) {
+  return function() {
+    constructor.apply(this, arguments);
+
+    // prepare amd define
+    if (this.has('@@amd-helpers'))
+      this.get('@@amd-helpers').createDefine();
+  };
+});
+
+hook('fetch', function(fetch) {
+  return function(load) {
+    load.metadata.scriptLoad = true;
+    return fetch.call(this, load);
+  };
+});System = new SystemJSLoader();
+
+__global.SystemJS = System;
+System.version = '0.19.17 CSP';
+  // -- exporting --
+
+  if (typeof exports === 'object')
+    module.exports = Loader;
+
+  __global.Reflect = __global.Reflect || {};
+  __global.Reflect.Loader = __global.Reflect.Loader || Loader;
+  __global.Reflect.global = __global.Reflect.global || __global;
+  __global.LoaderPolyfill = Loader;
+
+  if (!System) {
+    System = new SystemLoader();
+    System.constructor = SystemLoader;
+  }
+
+  if (typeof exports === 'object')
+    module.exports = System;
+
+  __global.System = System;
+
+})(typeof self != 'undefined' ? self : global);}
+
+// auto-load Promise and URL polyfills if needed in the browser
+try {
+  var hasURL = typeof URLPolyfill != 'undefined' || new URL('test:///').protocol == 'test:';
+}
+catch(e) {}
+
+if (typeof Promise === 'undefined' || !hasURL) {
+  // document.write
+  if (typeof document !== 'undefined') {
+    var scripts = document.getElementsByTagName('script');
+    $__curScript = scripts[scripts.length - 1];
+    var curPath = $__curScript.src;
+    var basePath = curPath.substr(0, curPath.lastIndexOf('/') + 1);
+    window.systemJSBootstrap = bootstrap;
+    document.write(
+      '<' + 'script type="text/javascript" src="' + basePath + 'system-polyfills.js">' + '<' + '/script>'
+    );
+  }
+  // importScripts
+  else if (typeof importScripts !== 'undefined') {
+    var basePath = '';
+    try {
+      throw new Error('_');
+    } catch (e) {
+      e.stack.replace(/(?:at|@).*(http.+):[\d]+:[\d]+/, function(m, url) {
+        basePath = url.replace(/\/[^\/]*$/, '/');
+      });
+    }
+    importScripts(basePath + 'system-polyfills.js');
+    bootstrap();
+  }
+  else {
+    bootstrap();
+  }
+}
+else {
+  bootstrap();
+}
+
+
+})();
\ No newline at end of file