Added Minify Build Step

[Benjamin Evenson]

Using gulp minify the project and timestamp the file to avoid browser caching old JS.

[Benjamin Evenson]

As of latest commit, when running npm start the gulp script will run first. This will minify and timestamp all the angular code and output it into public/dest/bundle{timesamp}.js and write the include into index.html. Current the nonminified code is still served over HTTP but isn't used.