Änderungen

Summary

Commit f7971f985fe6c499b10e4935fcfd5a4535e31a07 by frotty add .hasAt and doc, see #142
	wurst/data/HashList.wurst (diff)
	wurst/data/HashListTests.wurst (diff)
	wurst/data/LinkedList.wurst (diff)
Commit 89e08f771198e02b566053e40571ffe33117a941 by frotty Effect.wurst missing functions (#137) * Update Effect.wurst
	wurst/_handles/Effect.wurst (diff)
Commit 8dd7f5a89df3aa5af1950f272091ef7d238a46fb by frotty Added common extensions. (#136) * Added common extensions.
	wurst/_handles/Unit.wurst (diff)
	wurst/_handles/Force.wurst (diff)