Adding Gulp

The makefiles included in the project dont work on windows 8, using [GnuMake](http://gnuwin32.sourceforge.net/packages/make.htm)

Added in a simple gulp based system (though left make there) to:
- browserify with reactify transform
- compile less
- compile examples
- watch
- using [browserSync](http://browsersync.io) launch a local server

It should make it easier for people to contribute / use this on windows as it builds up and runs a local site with some examples

Havent looked at replacing the standalone or docs makefiles, but would be much appreciated by those of us not on *nix if this used gulp (or grunt)...
For the standalone part, the issue was with browserify_shim as it isnt compatible with browserify 5+ so would have to have a separate gulpfile under standalone (like you do for makes)

How would you feel about using webpack (with a pull request, of course)?

This would be incompatible with other build setups which include bootstrap from different locations. I'd recommend removing that line and instead consider this less file to be dependent on bootstrap implicitly.