build: Add some required modules for node

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diff --git a/node_modules/is-directory/README.md b/node_modules/is-directory/README.md
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+# is-directory [![NPM version](https://img.shields.io/npm/v/is-directory.svg?style=flat)](https://www.npmjs.com/package/is-directory) [![NPM downloads](https://img.shields.io/npm/dm/is-directory.svg?style=flat)](https://npmjs.org/package/is-directory) [![Build Status](https://img.shields.io/travis/jonschlinkert/is-directory.svg?style=flat)](https://travis-ci.org/jonschlinkert/is-directory)
+
+Returns true if a filepath exists on the file system and it's directory.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install is-directory --save
+```
+
+## Usage
+
+```js
+var isDirectory = require('is-directory');
+
+isDirectory('node_modules', function(err, dir) {
+  if (err) throw err;
+  console.log(dir);
+  //=> true
+});
+
+isDirectory.sync('README.md');
+//=> false
+```
+
+## Related projects
+
+You might also be interested in these projects:
+
+* [is-absolute](https://www.npmjs.com/package/is-absolute): Polyfill for node.js `path.isAbolute`. Returns true if a file path is absolute. | [homepage](https://github.com/jonschlinkert/is-absolute)
+* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern.… [more](https://www.npmjs.com/package/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob)
+* [is-relative](https://www.npmjs.com/package/is-relative): Returns `true` if the path appears to be relative. | [homepage](https://github.com/jonschlinkert/is-relative)
+
+## Contributing
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/is-directory/issues/new).
+
+## Building docs
+
+Generate readme and API documentation with [verb](https://github.com/verbose/verb):
+
+```sh
+$ npm install verb && npm run docs
+```
+
+Or, if [verb](https://github.com/verbose/verb) is installed globally:
+
+```sh
+$ verb
+```
+
+## Running tests
+
+Install dev dependencies:
+
+```sh
+$ npm install -d && npm test
+```
+
+## Author
+
+**Jon Schlinkert**
+
+* [github/jonschlinkert](https://github.com/jonschlinkert)
+* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
+
+## License
+
+Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT license](https://github.com/jonschlinkert/is-directory/blob/master/LICENSE).
+
+***
+
+_This file was generated by [verb](https://github.com/verbose/verb), v0.9.0, on May 21, 2016._
\ No newline at end of file