Adjust extension constraints

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sr_feuser_register/trunk@85727 735d13b6-9817-0410-8766-e36946ffe9aa
Remove useless error message from syslog regarding non-matching authCode

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sr_feuser_register/trunk@85728 735d13b6-9817-0410-8766-e36946ffe9aa