Updated jslint to the first version, that works with safari 6.
Include jshint.js (v. 0.9.1) packaged by node.

> npm install --global jshint
> cp /usr/local/share/npm/lib/node_modules/jshint/packages/jshint/jshint.js assets/vendor/jshint.js
Added screw-jshint with all it's functionality.
version 0.1.10
Removed jslint submodule.
Removed support of jslint.

* Raise exception, if jslint.rb is still present.
Updated jshint to version 1.0.0.

Downloaded "Browser Bundle" from http://jshint.com/install/
Adjusted jshint options.

No more:
* regexp
* nomen
* devel
* plusplus
Added ruby 2.0.0 to travis test matrix.
Be less specific with bundler version.

This is needed to support bundler 1.3 with ruby 2.0
Reverted jshint back to version 0.9.1, since 1.0.0 has some bugs.

See https://github.com/jshint/jshint/issues/889
Merge pull request #4 from apepper/jshint

Jshint