reverted changes from rev76353

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/cal/branches/cal_LTS_4.5@84981 735d13b6-9817-0410-8766-e36946ffe9aa
increased version to 1.5.8

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/cal/branches/cal_LTS_4.5@84982 735d13b6-9817-0410-8766-e36946ffe9aa