[BUGFIX] Fatal error when adding new "sys_dmail_group"

Fixes: #53331

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/direct_mail_userfunc/trunk@81195 735d13b6-9817-0410-8766-e36946ffe9aa
[TASK] Raise version to 1.4.1

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/direct_mail_userfunc/trunk@81196 735d13b6-9817-0410-8766-e36946ffe9aa