dont activate booking links for dates too far in the future

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/ab_booking/trunk@80898 735d13b6-9817-0410-8766-e36946ffe9aa
dont activate booking links for dates too far in the future

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/ab_booking/trunk@80899 735d13b6-9817-0410-8766-e36946ffe9aa