- 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

   - TODOS:
     + controller/view usrfile: Don't create new instance of usrfile to populate
       a form. (reverted this change since its caused another error.)
     + bundle should create the uploads directory.