Merge changes from topic 'am-aba0a928-a4ff-4569-8ae5-9694c6816755' into ub-launcher3-master
* changes:
Polish Folder open animation during drag and drop. am: ecf45145 am: 3c255ca1
Polish Folder open animation during drag and drop. am: ecf45145
Polish Folder open animation during drag and drop.