simplify the orm sorter
Merge branch 'PIM-3177' of github.com:akeneo/pim-community-dev into PIM-3177

* 'PIM-3177' of github.com:akeneo/pim-community-dev: (220 commits)
  add comments on javascript
  add mongo support
  remove mongo support
  merge composer
  Switch phpSpec from dev-master to 2.1.0-RC1
  Clean up specs
  Fix CS
  Rename UserNotificationManager to NotificationManager
  Fix CS
  Update changelog
  Remove 'all' parameter when marking all notifications as viewed and allow only appropriate methods
  Remove extra blank line
  Remove the OroUserBundle dependency
  Fix CS
  Clean up mapping
  Remove Notification and UserNotification constructor arguments
  Rename variable
  CSS improvements
  Improve icon alignment in the navbar
  Remove commented out code
  ...