fixed issue if booking over maxCheckInterval period

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/ab_booking/trunk@80909 735d13b6-9817-0410-8766-e36946ffe9aa
remove debug output

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/ab_booking/trunk@80913 735d13b6-9817-0410-8766-e36946ffe9aa