arturgrigor/AGImagePickerController — pull request #31 by SpringOx (2014-03-27 17:53:27+00:00)
Title: optimize the sort of aaset group list

the new order from top to bottom like this：
ALAssetsGroupLibrary
ALAssetsGroupAlbum
ALAssetsGroupEvent
ALAssetsGroupFaces
ALAssetsGroupSavedPhotos
and all so support the property: shouldShowSavedPhotosOnTop