Merge remote-tracking branch 'source/master'

* source/master:
  Changelog V1.4
  Update in the project file
  Important fix to have the Camera Roll as first result in the Device Grabber
  Removing PSUICollectionView from git submodules
  Fix in the Device Grabber : now all the images can be loaded properly
  Deployment Target is now iOS6, no more need for PSTCollectionView
  adding default image
fix some issues