Cleanup hooks

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/commerce/branches/55612@83685 735d13b6-9817-0410-8766-e36946ffe9aa
Fix deprecated function usage

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/commerce/branches/55612@83686 735d13b6-9817-0410-8766-e36946ffe9aa
Fix language file handling

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/commerce/branches/55612@83687 735d13b6-9817-0410-8766-e36946ffe9aa