weaken guard in peakunit to match peakq precondition
weaken guard in peakunit to match peakq precondition

git-svn-id: e05a33fe3bc1e9288ef30b89ddd2ea8885b260a8@1421 9cb10eec-f628-0410-908a-98ac1d910071

michalkonecny/polypaver