Änderungen

Summary

1. add the previously removed lookahead functions to linked list iterators (#35) (details)
2. Grouputilsfix (#36) (details)

Commit 3154475aa830fb45b1f623711cb7dc3cefc5e7c6 by frotty add the previously removed lookahead functions to linked list iterators (#35)
	wurst/data/LinkedList.wurst (diff)
Commit df84c88974b909ca3b85e99a7315ff9a7c42f579 by frotty Grouputilsfix (#36)
	wurst/util/GroupUtils.wurst (diff)