Update jsHint to remove deprecated options + include all available options

The [jsHint](https://github.com/jshint/jshint/blob/master/examples/.jshintrc) example file enumerates every option and it's default value so you can explicitly control the available options. This PR modifies that file to use mean.io's existing config as well as removing deprecated options.

smarttabs - removed from current jsHint
https://github.com/jshint/jshint/blob/57de262574d64eb88846736f79f5879ec6ad66c2/src/jshint.js#L221-L229

regexp - marked as obsolete and no longer in the docs
https://github.com/jshint/jshint/blob/57de262574d64eb88846736f79f5879ec6ad66c2/src/jshint.js#L156-L160

predef - deprecated in place of globals
https://github.com/jshint/jshint/blob/57de262574d64eb88846736f79f5879ec6ad66c2/src/jshint.js#L169