CSS styling and addition of javascript

-This commit is not quite complete; It was committed early for a heroku
push
-Add 2 pngs for subtle backgrounds
-Add rails-less and therubyracer gems
-Add Pace.js for loading
-Add Yummi-loader for more stylized loading
-Make numerous edits to workspace javascript files to make room for
javascript filetype addition
-Update Project model to auto-generate javascript file