Got kandan to open running Rails 4 beta 1

- Updated gems to Rails 4 beta 1
- Removed attribute_accesible
- Fixed other Rails 4 related errors.
Activities controller now uses the require syntax to protect from mass_assignment
Remove unnecessary log from development file
More fixes to support Rails 4

- Added Devise registration to be able to add clean attributes when creating new users
- Added DRY method to be able to use cancan load_and_authorize method
- Added new version of database_cleaner
- Only one more test to pass
Updated config variables to remove Rails 4 depreciation notices
Added protected attributes gem to still support attributes accessible
Added strong_params for new devise version on Application Controller