Minify JS files via Grunt instead of zipping JS files

[daveb-501commons]

Right now the staticresource is a zip of all the JS files. Look to use grunt to make a minimized js file that can be in Salesforce instead of zip file for better performance.

https://github.com/gruntjs/grunt-contrib-uglify

[groundwired]

As part of this effort, should also move the bower_components folder out of the static resource because it contains many source files that are not used by the app. Instead, the build script should put only minified versions of the components (and any dependencies) into a dist folder inside the static resource.