merge marc_development
Merge branch 'ide' of gh:Catrobat/Catty into development

* 'ide' of gh:Catrobat/Catty:
  fix project to use AppIcon,LaunchImage from asset-catalogue
  hide programs folder in Documents folder
  enable support for iTunes FileSharing

Conflicts:
	src/Catty/AppDelegate.m
fix bugs that were caused by merge
move LXReorderableCVFlowLayout to UI-folder
done button to right upper corner in modal VC