- Used MySql instead of sqlite
   - Added map.css file which was causing routing error:
     /stylesheets/dist/css/bootstrap.css.map.css
   - Moved code from lib directory into model
   - Added rake task to set user as admin
   - After signup, user is considered to be logged in
   - Delete / Download controls are hidden if a user doesn't have permission.
   - Human friendly file size
   - Added rspec tests