added delete script
Short description added to deleteScript
Merge remote-tracking branch 'origin/LiveWallpaper_DeleteScript' into LiveWallpaper_Master
Renamed delete script and added readme in separate file
Merge remote-tracking branch 'origin/LiveWallpaper_DeleteScript' into LiveWallpaper_Master
Merge branch 'LiveWallpaper_Master' of https://github.com/Catrobat/Catroid into LiveWallpaper_Master