[FIX] not compatible to TYPO3 CMS > 4.7.x

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/ke_questionnaire/trunk@84480 735d13b6-9817-0410-8766-e36946ffe9aa
[BUGFIX] user selected answer value in semantic question got lost

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/ke_questionnaire/trunk@84481 735d13b6-9817-0410-8766-e36946ffe9aa