improved typing a bit
added or
added filter
added mustProceed()
export new package
optimize and and or
added toString()
moved from chameleon
backup
use tree predicates
added apply
re-enabled class
improved toString for tree predicates
added adapter for the JUNG library
added layout adapter
removed connectedTo which was implemented in a wrong manner anyway
added type parameter to iterator() result
fixed concurrent modification during terminate
added jung dependency
broken