- Removed user_role model and related files.

 - Profile model no longer refers to user_role.

 - Profile updated with roles feature following cancancan documentation.

 - Updated ablity to use the roles instead of user_roles.

 - Added model specs for ablity.

 - Added request spec for Login and Folders.

 - Updated Folders and Profiles controller to use correct ablity check.

 - Moved the checking for profile from home controller to base controller.

 - Profile check added as before_filter on ApplicationController to redirect to profiles#create.

 - Fixed layout file to show the nickname only if profile exist.

 - Removed user_role resource from routes file.
  - Added profile pic to profile factories

  - Updated login specs in devise_specs