Änderungen

Summary

1. fix some warnings (details)

Commit 09db454bdf25cc9d36b2cbb0908dff991c34ad66 by frotty fix some warnings
	wurst/_handles/Group.wurst (diff)
	wurst/data/BufferTests.wurst (diff)
	wurst/_handles/primitives/String.wurst (diff)
	wurst/util/UnitIndexer.wurst (diff)