add node_modules to address #4364

18 files changed, 1193 insertions, 0 deletions

diff --git a/node_modules/liftoff/.jscsrc b/node_modules/liftoff/.jscsrc
new file mode 100644
index 000000000..af3c78ee7
--- /dev/null
+++ b/node_modules/liftoff/.jscsrc
@@ -0,0 +1,60 @@
+{
+  "esnext": true,
+  "disallowMixedSpacesAndTabs": true,
+  "disallowSpaceAfterObjectKeys": true,
+  "disallowSpaceBeforeBinaryOperators": [
+    ","
+  ],
+  "disallowSpacesInsideArrayBrackets": true,
+  "disallowSpacesInsideParentheses": true,
+  "disallowTrailingWhitespace": true,
+  "requireCommaBeforeLineBreak": true,
+  "requireLineFeedAtFileEnd": true,
+  "requireSpaceAfterBinaryOperators": [
+    "=",
+    ",",
+    "+",
+    "-",
+    "/",
+    "*",
+    "==",
+    "===",
+    "!=",
+    "!==",
+    ":",
+    "&&",
+    "||"
+  ],
+  "requireSpaceAfterKeywords": [
+    "if",
+    "else",
+    "for",
+    "while",
+    "do",
+    "switch",
+    "return",
+    "try",
+    "catch"
+  ],
+  "requireSpaceBeforeBinaryOperators": [
+    "=",
+    "+",
+    "-",
+    "/",
+    "*",
+    "==",
+    "===",
+    "!=",
+    "!==",
+    "&&",
+    "||"
+  ],
+  "requireSpaceBeforeBlockStatements": true,
+  "requireSpacesInFunctionExpression": {
+    "beforeOpeningCurlyBrace": true
+  },
+  "validateQuoteMarks": {
+    "escape": true,
+    "mark": "'"
+  }
+}
diff --git a/node_modules/liftoff/.jshintrc b/node_modules/liftoff/.jshintrc
new file mode 100644
index 000000000..687108403
--- /dev/null
+++ b/node_modules/liftoff/.jshintrc
@@ -0,0 +1,11 @@
+{
+  "undef": true,
+  "unused": true,
+  "node": true,
+  "esnext": true,
+  "expr": true,
+  "globals": {
+    "describe": true,
+    "it": true
+  }
+}
diff --git a/node_modules/liftoff/.npmignore b/node_modules/liftoff/.npmignore
new file mode 100644
index 000000000..9c9c73b8c
--- /dev/null
+++ b/node_modules/liftoff/.npmignore
@@ -0,0 +1,2 @@
+test
+artwork
diff --git a/node_modules/liftoff/.travis.yml b/node_modules/liftoff/.travis.yml
new file mode 100644
index 000000000..61ec9ece7
--- /dev/null
+++ b/node_modules/liftoff/.travis.yml
@@ -0,0 +1,16 @@
+language: node_js
+os:
+  - linux
+  - osx
+node_js:
+  - "6"
+  - "5"
+  - "4"
+  - "0.12"
+  - "0.10"
+before_install:
+  - npm update -g npm
+matrix:
+  fast_finish: true
+  allow_failures:
+    - node_js: "0.10"
diff --git a/node_modules/liftoff/CHANGELOG b/node_modules/liftoff/CHANGELOG
new file mode 100644
index 000000000..ee5b84d58
--- /dev/null
+++ b/node_modules/liftoff/CHANGELOG
@@ -0,0 +1,127 @@
+v2.2.2:
+  date: 2016-05-20
+  changes:
+    - Update dependencies.
+v2.2.1:
+  date: 2016-03-23
+  changes:
+    - Make sure that v8 flags are passed properly through the `respawn` event
+v2.1.0:
+  date: 2015-05-20
+  changes:
+    - Use rechoir to autoload modules.
+v2.0.3:
+  date: 2015-03-31
+  changes:
+    - Internal bugfix, don't wrap callback error in another error, idiot.
+v2.0.2:
+  date: 2015-02-24
+  changes:
+    - Support process.env.NODE_PATH when resolving module.
+v2.0.1:
+  date: 2015-02-01
+  changes:
+    - Find modulePath correctly when devving against yourself.
+v2.0.0:
+  date: 2015-01-15
+  changes:
+    - Rename `nodeFlags` to `v8Flags` and make it async.
+v1.0.4:
+  date: 2015-01-04
+  changes:
+    - Detect config extension using basename, not full path.
+v1.0.0:
+  date: 2014-12-16
+  changes:
+    - Update dependencies
+v0.13.6:
+  date: 2014-11-07
+  changes:
+    - Don't include artwork on npm.
+v0.13.5:
+  date: 2014-10-10
+  changes:
+    - Only attempt to resolve the real path of configFile if it is actually a symlink.
+v0.13.4:
+  date: 2014-10-07
+  changes:
+    - Set configBase to the directory of the symlink, not the directory of its real location.
+v0.13.3:
+  date: 2014-10-06
+  changes:
+    - Return the real location of symlinked config files.
+v0.13.2:
+  date: 2014-09-12
+  changes:
+    - Include flags in respawn event. I really miss `npm publish --force`.
+v0.13.1:
+  date: 2014-09-12
+  changes:
+    - Slight performance tweak.
+v0.13.0:
+  date: 2014-09-12
+  changes:
+    - Support passing flags to node with `nodeFlags` option.
+v0.12.1:
+  date: 2014-06-27
+  changes:
+    - Support preloading modules for compound extensions like `.coffee.md`.
+v0.12.0:
+  date: 2014-06-27
+  changes:
+    - Respect order of extensions when searching for config.
+    - Rename `configNameRegex` environment property to `configNameSearch`.
+v0.11.3:
+  date: 2014-06-09
+  changes:
+    - Make cwd match configBase if cwd isn't explictly provided
+v0.11.2:
+  date: 2014-06-04
+  changes:
+    - Regression fix: coerce preloads into array before attempting to push more
+v0.11.1:
+  date: 2014-06-02
+  changes:
+    - Update dependencies.
+v0.11.0:
+  date: 2014-05-27
+  changes:
+    - Refactor and remove options parsing.
+v0.10.0:
+  date: 2014-05-06
+  changes:
+    - Remove `addExtension` in favor of `extension` option.
+    - Support preloading modules based on extension.
+v0.9.7:
+  date: 2014-04-28
+  changes:
+    - Locate local module in cwd even if config isn't present.
+v0.9.6:
+  date: 2014-04-02
+  changes:
+    - Fix regression where external modules are not properly required.
+    - Ignore configPathFlag / cwdFlag if the value isn't a string
+v0.9.3:
+  date: 2014-02-28
+  changes:
+    - Fix regression where developing against self doesn't correctly set cwd.
+v0.9.0:
+  date: 2014-02-28
+  changes:
+    - Use liftoff instance as context (`this`) for launch callback.
+    - Support split --cwd and --configfile locations.
+    - Rename `configLocationFlag` to `configPathFlag`
+    - Support node 0.8+
+v0.8.7:
+  date: 2014-02-24
+  changes:
+    - Pass environment as first argument to `launch`.
+v0.8.5:
+  date: 2014-02-19
+  changes:
+    - Implement `addExtensions` option.
+    - Default to `index.js` if `modulePackage` has no `main` property.
+v0.8.4:
+  date: 2014-02-05
+  changes:
+    - Initial public release.
diff --git a/node_modules/liftoff/LICENSE b/node_modules/liftoff/LICENSE
new file mode 100644
index 000000000..a55f5b74b
--- /dev/null
+++ b/node_modules/liftoff/LICENSE
@@ -0,0 +1,22 @@
+Copyright (c) 2014 Tyler Kellen
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/liftoff/README.md b/node_modules/liftoff/README.md
new file mode 100644
index 000000000..9a5a0ae01
--- /dev/null
+++ b/node_modules/liftoff/README.md
@@ -0,0 +1,429 @@
+<p align="center">
+  <a href="http://liftoffjs.com">
+    <img height="100" width="297" src="https://cdn.rawgit.com/tkellen/js-liftoff/master/artwork/liftoff.svg"/>
+  </a>
+</p>
+
+# liftoff [![Build Status](https://secure.travis-ci.org/js-cli/js-liftoff.svg)](http://travis-ci.org/js-cli/js-liftoff) [![Build status](https://ci.appveyor.com/api/projects/status/5a6w8xuq8ed1ilc4/branch/master?svg=true)](https://ci.appveyor.com/project/js-cli/js-liftoff/branch/master)
+
+> Launch your command line tool with ease.
+
+[![NPM](https://nodei.co/npm/liftoff.png)](https://nodei.co/npm/liftoff/)
+
+## What is it?
+[See this blog post](http://weblog.bocoup.com/building-command-line-tools-in-node-with-liftoff/), [check out this proof of concept](https://github.com/js-cli/js-hacker), or read on.
+
+Say you're writing a CLI tool.  Let's call it [hacker](https://github.com/js-cli/js-hacker).  You want to configure it using a `Hackerfile`.  This is node, so you install `hacker` locally for each project you use it in.  But, in order to get the `hacker` command in your PATH, you also install it globally.
+
+Now, when you run `hacker`, you want to configure what it does using the `Hackerfile` in your current directory, and you want it to execute using the local installation of your tool.  Also, it'd be nice if the `hacker` command was smart enough to traverse up your folders until it finds a `Hackerfile`&mdash;for those times when you're not in the root directory of your project.  Heck, you might even want to launch `hacker` from a folder outside of your project by manually specifying a working directory.  Liftoff manages this for you.
+
+So, everything is working great.  Now you can find your local `hacker` and `Hackerfile` with ease.  Unfortunately, it turns out you've authored your `Hackerfile` in coffee-script, or some other JS variant.  In order to support *that*, you have to load the compiler for it, and then register the extension for it with node.  Good news, Liftoff can do that, and a whole lot more, too.
+
+## API
+
+### constructor(opts)
+
+Create an instance of Liftoff to invoke your application.
+
+An example utilizing all options:
+```js
+const Hacker = new Liftoff({
+  name: 'hacker',
+  processTitle: 'hacker',
+  moduleName: 'hacker',
+  configName: 'hackerfile',
+  extensions: {
+    '.js': null,
+    '.json': null,
+    '.coffee': 'coffee-script/register'
+  },
+  v8flags: ['--harmony'] // or v8flags: require('v8flags')
+});
+```
+
+#### opts.name
+
+Sugar for setting `processTitle`, `moduleName`, `configName` automatically.
+
+Type: `String`  
+Default: `null`
+
+These are equivalent:
+```js
+const Hacker = Liftoff({
+  processTitle: 'hacker',
+  moduleName: 'hacker',
+  configName: 'hackerfile'
+});
+```
+```js
+const Hacker = Liftoff({name:'hacker'});
+```
+
+#### opts.moduleName
+
+Sets which module your application expects to find locally when being run.
+
+Type: `String`  
+Default: `null`
+
+#### opts.configName
+
+Sets the name of the configuration file Liftoff will attempt to find.  Case-insensitive.
+
+Type: `String`  
+Default: `null`
+
+#### opts.extensions
+
+Set extensions to include when searching for a configuration file.  If an external module is needed to load a given extension (e.g. `.coffee`), the module name should be specified as the value for the key.
+
+Type: `Object`  
+Default: `{".js":null,".json":null}`
+
+**Examples:**
+
+In this example Liftoff will look for `myappfile{.js,.json,.coffee}`.  If a config with the extension `.coffee` is found, Liftoff will try to require `coffee-script/require` from the current working directory.
+```js
+const MyApp = new Liftoff({
+  name: 'myapp',
+  extensions: {
+    '.js': null,
+    '.json': null,
+    '.coffee': 'coffee-script/register'
+  }
+});
+```
+
+In this example, Liftoff will look for `.myapp{rc}`.
+```js
+const MyApp = new Liftoff({
+  name: 'myapp',
+  configName: '.myapp',
+  extensions: {
+    'rc': null
+  }
+});
+```
+
+In this example, Liftoff will automatically attempt to load the correct module for any javascript variant supported by [node-interpret](https://github.com/tkellen/node-interpret) (as long as it does not require a register method).
+
+```js
+const MyApp = new Liftoff({
+  name: 'myapp',
+  extensions: require('interpret').jsVariants
+});
+```
+#### opts.v8flags
+
+Any flag specified here will be applied to node, not your program.  Useful for supporting invocations like `myapp --harmony command`, where `--harmony` should be passed to node, not your program. This functionality is implemented using [flagged-respawn](http://github.com/tkellen/node-flagged-respawn). To support all v8flags, see [node-v8flags](https://github.com/tkellen/node-v8flags).
+
+Type: `Array|Function`  
+Default: `null`
+
+If this method is a function, it should take a node-style callback that yields an array of flags.
+
+#### opts.processTitle
+
+Sets what the [process title](http://nodejs.org/api/process.html#process_process_title) will be.
+
+Type: `String`  
+Default: `null`
+
+#### opts.completions(type)
+
+A method to handle bash/zsh/whatever completions.
+
+Type: `Function`  
+Default: `null`
+
+#### opts.configFiles
+
+An object of configuration files to find. Each property is keyed by the default basename of the file being found, and the value is an object of [path arguments](#path-arguments) keyed by unique names.
+
+__Note:__ This option is useful if, for example, you want to support an `.apprc` file in addition to an `appfile.js`. If you only need a single configuration file, you probably don't need this. In addition to letting you find multiple files, this option allows more fine-grained control over how configuration files are located.
+
+Type: `Object`  
+Default: `null`
+
+#### Path arguments
+
+The [`fined`](https://github.com/js-cli/fined) module accepts a string representing the path to search or an object with the following keys:
+
+* `path` __(required)__
+
+  The path to search. Using only a string expands to this property.
+
+  Type: `String`  
+  Default: `null`
+
+* `name`
+
+  The basename of the file to find. Extensions are appended during lookup.
+
+  Type: `String`  
+  Default: Top-level key in `configFiles`
+
+* `extensions`
+
+  The extensions to append to `name` during lookup. See also: [`opts.extensions`](#optsextensions).
+
+  Type: `String|Array|Object`  
+  Default: The value of [`opts.extensions`](#optsextensions)
+
+* `cwd` 
+
+  The base directory of `path` (if relative).
+
+  Type: `String`  
+  Default: The value of [`opts.cwd`](#optscwd)
+
+* `findUp`
+
+  Whether the `path` should be traversed up to find the file.
+
+  Type: `Boolean`  
+  Default: `false`
+
+**Examples:**
+
+In this example Liftoff will look for the `.hacker.js` file relative to the `cwd` as declared in `configFiles`.
+```js
+const MyApp = new Liftoff({
+  name: 'hacker',
+  configFiles: {
+    '.hacker': {
+      cwd: '.'
+    }
+  }
+});
+```
+
+In this example, Liftoff will look for `.hackerrc` in the home directory.
+```js
+const MyApp = new Liftoff({
+  name: 'hacker',
+  configFiles: {
+    '.hacker': {
+      home: {
+        path: '~',
+        extensions: {
+          'rc': null
+        }
+      }
+    }
+  }
+});
+```
+
+In this example, Liftoff will look in the `cwd` and then lookup the tree for the `.hacker.js` file.
+```js
+const MyApp = new Liftoff({
+  name: 'hacker',
+  configFiles: {
+    '.hacker': {
+      up: {
+        path: '.',
+        findUp: true
+      }
+    }
+  }
+});
+```
+
+In this example, the `name` is overridden and the key is ignored so Liftoff looks for `.override.js`.
+```js
+const MyApp = new Liftoff({
+  name: 'hacker',
+  configFiles: {
+    hacker: {
+      override: {
+        path: '.',
+        name: '.override'
+      }
+    }
+  }
+});
+```
+
+In this example, Liftoff will use the home directory as the `cwd` and looks for `~/.hacker.js`.
+```js
+const MyApp = new Liftoff({
+  name: 'hacker',
+  configFiles: {
+    '.hacker': {
+      home: {
+        path: '.',
+        cwd: '~'
+      }
+    }
+  }
+});
+```
+
+## launch(opts, callback(env))
+Launches your application with provided options, builds an environment, and invokes your callback, passing the calculated environment as the first argument.
+
+##### Example Configuration w/ Options Parsing:
+```js
+const Liftoff = require('liftoff');
+const MyApp = new Liftoff({name:'myapp'});
+const argv = require('minimist')(process.argv.slice(2));
+const invoke = function (env) {
+  console.log('my environment is:', env);
+  console.log('my cli options are:', argv);
+  console.log('my liftoff config is:', this);
+};
+MyApp.launch({
+  cwd: argv.cwd,
+  configPath: argv.myappfile,
+  require: argv.require,
+  completion: argv.completion
+}, invoke);
+```
+
+#### opts.cwd
+
+Change the current working directory for this launch. Relative paths are calculated against `process.cwd()`.
+
+Type: `String`  
+Default: `process.cwd()`
+
+**Example Configuration:**
+```js
+const argv = require('minimist')(process.argv.slice(2));
+MyApp.launch({
+  cwd: argv.cwd
+}, invoke);
+```
+
+**Matching CLI Invocation:**
+```
+myapp --cwd ../
+```
+
+#### opts.configPath
+
+Don't search for a config, use the one provided. **Note:** Liftoff will assume the current working directory is the directory containing the config file unless an alternate location is explicitly specified using `cwd`.
+
+Type: `String`  
+Default: `null`
+
+**Example Configuration:**
+```js
+var argv = require('minimist')(process.argv.slice(2));
+MyApp.launch({
+  configPath: argv.myappfile
+}, invoke);
+```
+
+**Matching CLI Invocation:**
+```
+myapp --myappfile /var/www/project/Myappfile.js
+```
+
+**Examples using `cwd` and `configPath` together:**
+
+These are functionally identical:
+```
+myapp --myappfile /var/www/project/Myappfile.js
+myapp --cwd /var/www/project
+```
+
+These can run myapp from a shared directory as though it were located in another project:
+```
+myapp --myappfile /Users/name/Myappfile.js --cwd /var/www/project1
+myapp --myappfile /Users/name/Myappfile.js --cwd /var/www/project2
+```
+
+#### opts.require
+
+A string or array of modules to attempt requiring from the local working directory before invoking the launch callback.
+
+Type: `String|Array`  
+Default: `null`
+
+**Example Configuration:**
+```js
+var argv = require('minimist')(process.argv.slice(2));
+MyApp.launch({
+  require: argv.require
+}, invoke);
+```
+
+**Matching CLI Invocation:**
+```js
+myapp --require coffee-script/register
+```
+
+#### callback(env)
+
+A function to start your application.  When invoked, `this` will be your instance of Liftoff. The `env` param will contain the following keys:
+
+- `cwd`: the current working directory
+- `require`: an array of modules that liftoff tried to pre-load
+- `configNameSearch`: the config files searched for
+- `configPath`: the full path to your configuration file (if found)
+- `configBase`: the base directory of your configuration file (if found)
+- `modulePath`: the full path to the local module your project relies on (if found)
+- `modulePackage`: the contents of the local module's package.json (if found)
+- `configFiles`: an object of filepaths for each found config file (filepath values will be null if not found)
+
+### events
+
+#### require(name, module)
+
+Emitted when a module is pre-loaded.
+
+```js
+var Hacker = new Liftoff({name:'hacker'});
+Hacker.on('require', function (name, module) {
+  console.log('Requiring external module: '+name+'...');
+  // automatically register coffee-script extensions
+  if (name === 'coffee-script') {
+    module.register();
+  }
+});
+```
+
+#### requireFail(name, err)
+
+Emitted when a requested module cannot be preloaded.
+
+```js
+var Hacker = new Liftoff({name:'hacker'});
+Hacker.on('requireFail', function (name, err) {
+  console.log('Unable to load:', name, err);
+});
+```
+
+#### respawn(flags, child)
+
+Emitted when Liftoff re-spawns your process (when a [`v8flags`](#optsv8flags) is detected).
+
+```js
+var Hacker = new Liftoff({
+  name: 'hacker',
+  v8flags: ['--harmony']
+});
+Hacker.on('respawn', function (flags, child) {
+  console.log('Detected node flags:', flags);
+  console.log('Respawned to PID:', child.pid);
+});
+```
+
+Event will be triggered for this command:
+`hacker --harmony commmand`
+
+## Examples
+
+Check out how [gulp](https://github.com/gulpjs/gulp/blob/master/bin/gulp.js) uses Liftoff.
+
+For a bare-bones example, try [the hacker project](https://github.com/js-cli/js-hacker/blob/master/bin/hacker.js).
+
+To try the example, do the following:
+
+1. Install the sample project `hacker` with `npm install -g hacker`.
+2. Make a `Hackerfile.js` with some arbitrary javascript it.
+3. Install hacker next to it with `npm install hacker`.
+3. Run `hacker` while in the same parent folder.
diff --git a/node_modules/liftoff/UPGRADING.md b/node_modules/liftoff/UPGRADING.md
new file mode 100644
index 000000000..7f95e3ee8
--- /dev/null
+++ b/node_modules/liftoff/UPGRADING.md
@@ -0,0 +1,28 @@
+# 1.0.0 -> 2.0.0
+The option `nodeFlags` was renamed to `v8flags` for accuracy. It can now be a callback taking method that yields an array of flags, **or** an array literal.
+
+# 0.11 -> 0.12
+For the environment passed into the `launch` callback, `configNameRegex` has been renamed to `configNameSearch`.  It now returns an array of valid config names instead of a regular expression.
+
+# 0.10 -> 0.11
+The method signature for `launch` was changed in this version of Liftoff.
+
+You must now provide your own options parser and pass your desired params directly into `launch` as the first argument.  The second argument is now the invocation callback that starts your application.
+
+To replicate the default functionality of 0.10, use the following:
+```js
+const Liftoff = require('liftoff');
+const MyApp = new Liftoff({name:'myapp'});
+const argv = require('minimist')(process.argv.slice(2));
+const invoke = function (env) {
+  console.log('my environment is:', env);
+  console.log('my cli options are:', argv);
+  console.log('my liftoff config is:', this);
+};
+MyApp.launch({
+  cwd: argv.cwd,
+  configPath: argv.myappfile,
+  require: argv.require,
+  completion: argv.completion
+}, invoke);
+```
diff --git a/node_modules/liftoff/appveyor.yml b/node_modules/liftoff/appveyor.yml
new file mode 100644
index 000000000..bcb6b74a8
--- /dev/null
+++ b/node_modules/liftoff/appveyor.yml
@@ -0,0 +1,29 @@
+# http://www.appveyor.com/docs/appveyor-yml
+# http://www.appveyor.com/docs/lang/nodejs-iojs
+
+environment:
+  matrix:
+    # node.js
+    - nodejs_version: "0.10"
+    - nodejs_version: "0.12"
+    - nodejs_version: "4"
+    - nodejs_version: "5"
+    - nodejs_version: "6"
+
+install:
+  - IF %nodejs_version% EQU 0.10 npm -g install npm@2
+  - IF %nodejs_version% EQU 0.10 set PATH=%APPDATA%\npm;%PATH%
+  - ps: Install-Product node $env:nodejs_version
+  - npm install
+
+test_script:
+  - node --version
+  - npm --version
+  # power shell
+  - ps: "npm test"
+  # standard command line
+  - cmd: npm test
+
+build: off
+
+version: "{build}"
diff --git a/node_modules/liftoff/index.js b/node_modules/liftoff/index.js
new file mode 100644
index 000000000..0c0a8d5e9
--- /dev/null
+++ b/node_modules/liftoff/index.js
@@ -0,0 +1,210 @@
+const fs = require('fs');
+const util = require('util');
+const path = require('path');
+const EE = require('events').EventEmitter;
+
+const extend = require('extend');
+const resolve = require('resolve');
+const flaggedRespawn = require('flagged-respawn');
+const isPlainObject = require('lodash.isplainobject');
+const mapValues = require('lodash.mapvalues');
+const fined = require('fined');
+
+const findCwd = require('./lib/find_cwd');
+const findConfig = require('./lib/find_config');
+const fileSearch = require('./lib/file_search');
+const parseOptions = require('./lib/parse_options');
+const silentRequire = require('./lib/silent_require');
+const buildConfigName = require('./lib/build_config_name');
+const registerLoader = require('./lib/register_loader');
+
+
+function Liftoff (opts) {
+  EE.call(this);
+  extend(this, parseOptions(opts));
+}
+util.inherits(Liftoff, EE);
+
+Liftoff.prototype.requireLocal = function (module, basedir) {
+  try {
+    var result = require(resolve.sync(module, {basedir: basedir}));
+    this.emit('require', module, result);
+    return result;
+  } catch (e) {
+    this.emit('requireFail', module, e);
+  }
+};
+
+Liftoff.prototype.buildEnvironment = function (opts) {
+  opts = opts || {};
+
+  // get modules we want to preload
+  var preload = opts.require || [];
+
+  // ensure items to preload is an array
+  if (!Array.isArray(preload)) {
+    preload = [preload];
+  }
+
+  // make a copy of search paths that can be mutated for this run
+  var searchPaths = this.searchPaths.slice();
+
+  // calculate current cwd
+  var cwd = findCwd(opts);
+
+  // if cwd was provided explicitly, only use it for searching config
+  if (opts.cwd) {
+    searchPaths = [cwd];
+  } else {
+    // otherwise just search in cwd first
+    searchPaths.unshift(cwd);
+  }
+
+  // calculate the regex to use for finding the config file
+  var configNameSearch = buildConfigName({
+    configName: this.configName,
+    extensions: Object.keys(this.extensions)
+  });
+
+  // calculate configPath
+  var configPath = findConfig({
+    configNameSearch: configNameSearch,
+    searchPaths: searchPaths,
+    configPath: opts.configPath
+  });
+
+  // if we have a config path, save the directory it resides in.
+  var configBase;
+  if (configPath) {
+    configBase = path.dirname(configPath);
+    // if cwd wasn't provided explicitly, it should match configBase
+    if (!opts.cwd) {
+      cwd = configBase;
+    }
+    // resolve symlink if needed
+    if (fs.lstatSync(configPath).isSymbolicLink()) {
+      configPath = fs.realpathSync(configPath);
+    }
+  }
+
+  // TODO: break this out into lib/
+  // locate local module and package next to config or explicitly provided cwd
+  var modulePath, modulePackage;
+  try {
+    var delim = (process.platform === 'win32' ? ';' : ':'),
+        paths = (process.env.NODE_PATH ? process.env.NODE_PATH.split(delim) : []);
+    modulePath = resolve.sync(this.moduleName, {basedir: configBase || cwd, paths: paths});
+    modulePackage = silentRequire(fileSearch('package.json', [modulePath]));
+  } catch (e) {}
+
+  // if we have a configuration but we failed to find a local module, maybe
+  // we are developing against ourselves?
+  if (!modulePath && configPath) {
+    // check the package.json sibling to our config to see if its `name`
+    // matches the module we're looking for
+    var modulePackagePath = fileSearch('package.json', [configBase]);
+    modulePackage = silentRequire(modulePackagePath);
+    if (modulePackage && modulePackage.name === this.moduleName) {
+      // if it does, our module path is `main` inside package.json
+      modulePath = path.join(path.dirname(modulePackagePath), modulePackage.main || 'index.js');
+      cwd = configBase;
+    } else {
+      // clear if we just required a package for some other project
+      modulePackage = {};
+    }
+  }
+
+  // load any modules which were requested to be required
+  if (preload.length) {
+    // unique results first
+    preload.filter(function (value, index, self) {
+      return self.indexOf(value) === index;
+    }).forEach(function (dep) {
+      this.requireLocal(dep, findCwd(opts));
+    }, this);
+  }
+
+  var exts = this.extensions;
+  var eventEmitter = this;
+  registerLoader(eventEmitter, exts, configPath, cwd);
+
+  var configFiles = {};
+  if (isPlainObject(this.configFiles)) {
+    var notfound = { path: null };
+    configFiles = mapValues(this.configFiles, function(prop, name) {
+      var defaultObj = { name: name, cwd: cwd, extensions: exts };
+      return mapValues(prop, function(pathObj) {
+        var found = fined(pathObj, defaultObj) || notfound;
+        if (isPlainObject(found.extension)) {
+          registerLoader(eventEmitter, found.extension, found.path, cwd);
+        }
+        return found.path;
+      });
+    });
+  }
+
+  return {
+    cwd: cwd,
+    require: preload,
+    configNameSearch: configNameSearch,
+    configPath: configPath,
+    configBase: configBase,
+    modulePath: modulePath,
+    modulePackage: modulePackage || {},
+    configFiles: configFiles
+  };
+};
+
+Liftoff.prototype.handleFlags = function (cb) {
+  if (typeof this.v8flags === 'function') {
+    this.v8flags(function (err, flags) {
+      if (err) {
+        cb(err);
+      } else {
+        cb(null, flags);
+      }
+    });
+  } else {
+    process.nextTick(function () {
+      cb(null, this.v8flags);
+    }.bind(this));
+  }
+};
+
+Liftoff.prototype.launch = function (opts, fn) {
+  if (typeof fn !== 'function') {
+    throw new Error('You must provide a callback function.');
+  }
+  process.title = this.processTitle;
+
+  var completion = opts.completion;
+  if (completion && this.completions) {
+    return this.completions(completion);
+  }
+
+  this.handleFlags(function (err, flags) {
+    if (err) {
+      throw err;
+    } else {
+      if (flags) {
+        flaggedRespawn(flags, process.argv, function (ready, child) {
+          if (child !== process) {
+            this.emit('respawn', process.argv.filter(function (arg) {
+              var flag = arg.split('=')[0];
+              return flags.indexOf(flag) !== -1;
+            }.bind(this)), child);
+          }
+          if (ready) {
+            fn.call(this, this.buildEnvironment(opts));
+          }
+        }.bind(this));
+      } else {
+        fn.call(this, this.buildEnvironment(opts));
+      }
+    }
+  }.bind(this));
+};
+
+
+
+module.exports = Liftoff;
diff --git a/node_modules/liftoff/lib/build_config_name.js b/node_modules/liftoff/lib/build_config_name.js
new file mode 100644
index 000000000..b83e18508
--- /dev/null
+++ b/node_modules/liftoff/lib/build_config_name.js
@@ -0,0 +1,17 @@
+module.exports = function (opts) {
+  opts = opts || {};
+  var configName = opts.configName;
+  var extensions = opts.extensions;
+  if (!configName) {
+    throw new Error('Please specify a configName.');
+  }
+  if (configName instanceof RegExp) {
+    return [configName];
+  }
+  if (!Array.isArray(extensions)) {
+    throw new Error('Please provide an array of valid extensions.');
+  }
+  return extensions.map(function (ext) {
+    return configName + ext;
+  });
+};
diff --git a/node_modules/liftoff/lib/file_search.js b/node_modules/liftoff/lib/file_search.js
new file mode 100644
index 000000000..76dadd674
--- /dev/null
+++ b/node_modules/liftoff/lib/file_search.js
@@ -0,0 +1,14 @@
+const findup = require('findup-sync');
+
+module.exports = function (search, paths) {
+  var path;
+  var len = paths.length;
+  for (var i = 0; i < len; i++) {
+    if (path) {
+      break;
+    } else {
+      path = findup(search, {cwd: paths[i], nocase: true});
+    }
+  }
+  return path;
+};
diff --git a/node_modules/liftoff/lib/find_config.js b/node_modules/liftoff/lib/find_config.js
new file mode 100644
index 000000000..71c3f077d
--- /dev/null
+++ b/node_modules/liftoff/lib/find_config.js
@@ -0,0 +1,25 @@
+const fs = require('fs');
+const path = require('path');
+const fileSearch = require('./file_search');
+
+module.exports = function (opts) {
+  opts = opts || {};
+  var configNameSearch = opts.configNameSearch;
+  var configPath = opts.configPath;
+  var searchPaths = opts.searchPaths;
+  // only search for a config if a path to one wasn't explicitly provided
+  if (!configPath) {
+    if (!Array.isArray(searchPaths)) {
+      throw new Error('Please provide an array of paths to search for config in.');
+    }
+    if (!configNameSearch) {
+      throw new Error('Please provide a configNameSearch.');
+    }
+    configPath = fileSearch(configNameSearch, searchPaths);
+  }
+  // confirm the configPath exists and return an absolute path to it
+  if (fs.existsSync(configPath)) {
+    return path.resolve(configPath);
+  }
+  return null;
+};
diff --git a/node_modules/liftoff/lib/find_cwd.js b/node_modules/liftoff/lib/find_cwd.js
new file mode 100644
index 000000000..2a029b972
--- /dev/null
+++ b/node_modules/liftoff/lib/find_cwd.js
@@ -0,0 +1,18 @@
+const path = require('path');
+
+module.exports = function (opts) {
+  if (!opts) {
+    opts = {};
+  }
+  var cwd = opts.cwd;
+  var configPath = opts.configPath;
+  // if a path to the desired config was specified
+  // but no cwd was provided, use configPath dir
+  if (typeof configPath === 'string' && !cwd) {
+    cwd = path.dirname(path.resolve(configPath));
+  }
+  if (typeof cwd === 'string') {
+    return path.resolve(cwd);
+  }
+  return process.cwd();
+};
diff --git a/node_modules/liftoff/lib/parse_options.js b/node_modules/liftoff/lib/parse_options.js
new file mode 100644
index 000000000..ab416b520
--- /dev/null
+++ b/node_modules/liftoff/lib/parse_options.js
@@ -0,0 +1,35 @@
+const extend = require('extend');
+
+module.exports = function (opts) {
+  var defaults = {
+    extensions: {
+      '.js': null,
+      '.json': null
+    },
+    searchPaths: []
+  };
+  if (!opts) {
+    opts = {};
+  }
+  if (opts.name) {
+    if (!opts.processTitle) {
+      opts.processTitle = opts.name;
+    }
+    if (!opts.configName) {
+      opts.configName = opts.name + 'file';
+    }
+    if (!opts.moduleName) {
+      opts.moduleName = opts.name;
+    }
+  }
+  if (!opts.processTitle) {
+    throw new Error('You must specify a processTitle.');
+  }
+  if (!opts.configName) {
+    throw new Error('You must specify a configName.');
+  }
+  if (!opts.moduleName) {
+    throw new Error('You must specify a moduleName.');
+  }
+  return extend(defaults, opts);
+};
diff --git a/node_modules/liftoff/lib/register_loader.js b/node_modules/liftoff/lib/register_loader.js
new file mode 100644
index 000000000..2b5f4cb75
--- /dev/null
+++ b/node_modules/liftoff/lib/register_loader.js
@@ -0,0 +1,25 @@
+const rechoir = require('rechoir');
+const isString = require('lodash.isstring');
+
+module.exports = function(eventEmitter, extensions, configPath, cwd) {
+  extensions = extensions || {};
+
+  if (!isString(configPath)) {
+    return;
+  }
+
+  var autoloads = rechoir.prepare(extensions, configPath, cwd, true);
+  if (autoloads instanceof Error) {
+    autoloads = autoloads.failures;
+  }
+
+  if (Array.isArray(autoloads)) {
+    autoloads.forEach(function (attempt) {
+      if (attempt.error) {
+        eventEmitter.emit('requireFail', attempt.moduleName, attempt.error);
+      } else {
+        eventEmitter.emit('require', attempt.moduleName, attempt.module);
+      }
+    });
+  }
+};
diff --git a/node_modules/liftoff/lib/silent_require.js b/node_modules/liftoff/lib/silent_require.js
new file mode 100644
index 000000000..7b4dfe4e5
--- /dev/null
+++ b/node_modules/liftoff/lib/silent_require.js
@@ -0,0 +1,5 @@
+module.exports = function (path) {
+  try {
+    return require(path);
+  } catch (e) {}
+};
diff --git a/node_modules/liftoff/package.json b/node_modules/liftoff/package.json
new file mode 100644
index 000000000..f79681b4a
--- /dev/null
+++ b/node_modules/liftoff/package.json
@@ -0,0 +1,120 @@
+{
+  "_args": [
+    [
+      {
+        "raw": "liftoff@^2.1.0",
+        "scope": null,
+        "escapedName": "liftoff",
+        "name": "liftoff",
+        "rawSpec": "^2.1.0",
+        "spec": ">=2.1.0 <3.0.0",
+        "type": "range"
+      },
+      "/home/dold/repos/taler/wallet-webex/node_modules/gulp"
+    ]
+  ],
+  "_from": "liftoff@>=2.1.0 <3.0.0",
+  "_id": "liftoff@2.3.0",
+  "_inCache": true,
+  "_location": "/liftoff",
+  "_nodeVersion": "0.10.41",
+  "_npmOperationalInternal": {
+    "host": "packages-16-east.internal.npmjs.com",
+    "tmp": "tmp/liftoff-2.3.0.tgz_1469646196567_0.8871160212438554"
+  },
+  "_npmUser": {
+    "name": "phated",
+    "email": "blaine.bublitz@gmail.com"
+  },
+  "_npmVersion": "2.15.2",
+  "_phantomChildren": {},
+  "_requested": {
+    "raw": "liftoff@^2.1.0",
+    "scope": null,
+    "escapedName": "liftoff",
+    "name": "liftoff",
+    "rawSpec": "^2.1.0",
+    "spec": ">=2.1.0 <3.0.0",
+    "type": "range"
+  },
+  "_requiredBy": [
+    "/gulp"
+  ],
+  "_resolved": "https://registry.npmjs.org/liftoff/-/liftoff-2.3.0.tgz",
+  "_shasum": "a98f2ff67183d8ba7cfaca10548bd7ff0550b385",
+  "_shrinkwrap": null,
+  "_spec": "liftoff@^2.1.0",
+  "_where": "/home/dold/repos/taler/wallet-webex/node_modules/gulp",
+  "author": {
+    "name": "Tyler Kellen",
+    "url": "http://goingslowly.com/"
+  },
+  "bugs": {
+    "url": "https://github.com/js-cli/js-liftoff/issues"
+  },
+  "dependencies": {
+    "extend": "^3.0.0",
+    "findup-sync": "^0.4.2",
+    "fined": "^1.0.1",
+    "flagged-respawn": "^0.3.2",
+    "lodash.isplainobject": "^4.0.4",
+    "lodash.isstring": "^4.0.1",
+    "lodash.mapvalues": "^4.4.0",
+    "rechoir": "^0.6.2",
+    "resolve": "^1.1.7"
+  },
+  "description": "Launch your command line tool with ease.",
+  "devDependencies": {
+    "chai": "^3.5.0",
+    "coffee-script": "^1.10.0",
+    "istanbul": "^0.4.3",
+    "jscs": "^2.11.0",
+    "jshint": "^2.9.2",
+    "mocha": "^2.4.5",
+    "sinon": "~1.17.4"
+  },
+  "directories": {},
+  "dist": {
+    "shasum": "a98f2ff67183d8ba7cfaca10548bd7ff0550b385",
+    "tarball": "https://registry.npmjs.org/liftoff/-/liftoff-2.3.0.tgz"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "gitHead": "be40ec3a3fa5854b4ab496a97f3d5877bf747b0b",
+  "homepage": "https://github.com/js-cli/js-liftoff",
+  "keywords": [
+    "command line"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "maintainers": [
+    {
+      "name": "jonschlinkert",
+      "email": "github@sellside.com"
+    },
+    {
+      "name": "phated",
+      "email": "blaine.bublitz@gmail.com"
+    },
+    {
+      "name": "tkellen",
+      "email": "tyler@sleekcode.net"
+    },
+    {
+      "name": "tusbar",
+      "email": "bertrand.marron@gmail.com"
+    }
+  ],
+  "name": "liftoff",
+  "optionalDependencies": {},
+  "readme": "ERROR: No README data found!",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/js-cli/js-liftoff.git"
+  },
+  "scripts": {
+    "test": "jshint lib index.js && jscs lib index.js && mocha -t 5000 -b -R spec test/index"
+  },
+  "version": "2.3.0"
+}