now ruining enganas stuff :D
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Merge commit '2ac797cfe98a608ac638698138fb602f67f4c046' into Ivo_Lab

Conflicts:
	Projectfiles/Box.mm
	Projectfiles/CelestialObject.h
	Projectfiles/CelestialObject.mm
	Projectfiles/GravitationalObject.h
	Projectfiles/GravitationalObject.mm
	Projectfiles/Ship.mm
world with enganas contact listener
Ropes break on contact
More boxes for tests also deleted bad branches
Added destruction. Celestial Objects now have durability and are eliminated when it runs out