Add a script to update gh-pages branch.
Add a script to update gh-pages branch.

This creates a commit pointing at a subdirectory.

It should also get published automatically when it hits github.
nikgoodley-ibboost/jslint4java,rsingla/jslint4java,rsingla/jslint4java,mmayorivera/jslint4java,llwanghong/jslint4java,llwanghong/jslint4java,rsingla/jslint4java,llwanghong/jslint4java,rsingla/jslint4java,llwanghong/jslint4java,mmayorivera/jslint4java,mmayorivera/jslint4java,mmayorivera/jslint4java,rsingla/jslint4java,nikgoodley-ibboost/jslint4java,nikgoodley-ibboost/jslint4java,nikgoodley-ibboost/jslint4java,llwanghong/jslint4java,mmayorivera/jslint4java,nikgoodley-ibboost/jslint4java