- Fixed LuGusSingleton: now nulls reference OnDestroy() too. Releases lots of memory. Also did this for non-standard singleton implementations. (E.g. things not deriving from LugusSingleton directly).
 - Changed app icon to non-transparent one.
 - Changed a bunch of texture resolutions to optimise per-scene memory footprint.
 - Added english and dutch level texts for mouse hunt
 - Fixed two broken cat anims again