CC0 1.0

SawmillRipcut			-	kolczok (http://freesound.org/people/kolczok/sounds/198988/)
EngineStart / EngineLoop / EngineStop	gthall (http://www.freesound.org/people/gthall/sounds/222808/)

note by Clonkonaut: I will move these sounds into Sound.ocg once refactoring has been finished.