Enable to install

[antleblanc]

Description

I'm not able to install dependencies.

Steps to Reproduce

1. Clone the repository
2. Run npm install

Expected behavior:

All depencendies must be installed.

Actual behavior:

$ npm install
npm WARN deprecated gulp-util@3.0.8: gulp-util is deprecated - replace it, following the guidelines at https://medium.com/gulpjs/gulp-util-ca3b1f9f9ac5
npm WARN deprecated browserslist@2.11.3: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools.
npm WARN deprecated swig@1.4.0: This package is no longer maintained
npm WARN deprecated graceful-fs@3.0.11: please upgrade to graceful-fs 4 for compatibility with current and future versions of Node.js
npm WARN deprecated node-uuid@1.4.0: Use uuid module instead
npm WARN deprecated transformation-matrix-js@2.7.6: Package no longer supported. Contact support@npmjs.com for more info.
npm WARN deprecated minimatch@2.0.10: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated minimatch@0.2.14: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated graceful-fs@1.2.3: please upgrade to graceful-fs 4 for compatibility with current and future versions of Node.js
npm ERR! code 1
npm ERR! Command failed: /usr/bin/git checkout 4.0
npm ERR! error: pathspec '4.0' did not match any file(s) known to git.
npm ERR! 

Reproduces how often:

All the time.

[blaryjp]

The branch "4.0" of gulp is not available anymore. we must use the tag :)