set version to 1.6.9

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/ke_search/trunk@85832 735d13b6-9817-0410-8766-e36946ffe9aa
set version to 1.6.10DEV

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/ke_search/trunk@85833 735d13b6-9817-0410-8766-e36946ffe9aa