added toScene segues to object, sounds, looks, scripts TVCs

Signed-off-by: Ralph Samer <ralph.samer@student.tugraz.at>
play/stop behaviour for sounds in ObjectTVC

Signed-off-by: Ralph Samer <ralph.samer@student.tugraz.at>
Merge branch 'spritekit' of gh:Catrobat/Catty into ide

* 'spritekit' of gh:Catrobat/Catty:
  fixes #86 concerning line height