edited collision with bounding spheres
changed it to bounding boxes
cleaned the Singleplayer.cs code
Merge branch 'master' of https://github.com/KleinerMensch/CR4VE

Conflicts:
	CR4VE/CR4VE.v11.suo
	CR4VE/CR4VE/CR4VE/CR4VE.csproj.Debug.cachefile
	CR4VE/CR4VE/CR4VE/GameLogic/AI/EnemySpinningCrystal.cs