Änderungen

Summary

1. fix warnings and use ClosureEvents from stdlib (details)

Commit e0725a30b5437b2174a217a5bb04aededfa0d63b by frotty fix warnings and use ClosureEvents from stdlib
	wurst/entity/Event.wurst
	wurst/util/KeyUtils.wurst (diff)
	wurst/test/Usage.wurst (diff)
	wurst/physics/PhysicsEntity.wurst (diff)
	wurst/war3map.j (diff)
	wurst.build (diff)
	wurst/entity/Entity.wurst (diff)