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diff --git a/thirdparty/systemjs/lib/conditionals.js b/thirdparty/systemjs/lib/conditionals.js
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+/*
+ * 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'
+ *
+ */
+
+  var sysConditions = ['browser', 'node', 'dev', 'build', 'production', 'default'];
+
+  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);
+      
+      if (negation)
+        warn.call(this, 'Condition negation form "' + condition + '" is deprecated for "' + conditionModule + '|~' + conditionExport + '"');
+
+      if (conditionExport[0] == '~') {
+        negation = true;
+        conditionExport = conditionExport.substr(1);
+      }
+    }
+    else {
+      conditionExport = 'default';
+      conditionModule = condition.substr(negation);
+      if (sysConditions.indexOf(conditionModule) != -1) {
+        conditionExport = conditionModule;
+        conditionModule = null;
+      }
+    }
+
+    return {
+      module: conditionModule || '@system-env',
+      prop: conditionExport,
+      negate: negation
+    };
+  }
+
+  function serializeCondition(conditionObj) {
+    return conditionObj.module + '|' + (conditionObj.negate ? '~' : '') + conditionObj.prop;
+  }
+
+  function resolveCondition(conditionObj, parentName, bool) {
+    var self = this;
+    return this.normalize(conditionObj.module, parentName)
+    .then(function(normalizedCondition) {
+      return self.load(normalizedCondition)
+      .then(function(q) {
+        var m = readMemberExpression(conditionObj.prop, self.get(normalizedCondition));
+
+        if (bool && typeof m != 'boolean')
+          throw new TypeError('Condition ' + serializeCondition(conditionObj) + ' did not resolve to a boolean.');
+
+        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.call(this, 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.call(this, 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, skipExt) {
+      var loader = this;
+      return booleanConditional.call(loader, name, parentName)
+      .then(function(name) {
+        return normalize.call(loader, name, parentName, skipExt);
+      })
+      .then(function(normalized) {
+        return interpolateConditional.call(loader, normalized, parentName);
+      });
+    };
+  });