Änderungen

Summary

1. improve Preloader and fix printLog calls (details)

Commit 7cfed491770264ee1cc6bfce0b09aaa90859893f by frotty improve Preloader and fix printLog calls
	wurst/util/Preloader.wurst (diff)
	wurst/_wurst/ErrorHandling.wurst (diff)
	wurst/math/Vectors.wurst (diff)
	wurst/util/TimerUtils.wurst (diff)
	wurst/_handles/GroupTests.wurst (diff)