Revert fix to issue #49077: Extend Extbase class until issue #47192 is fixed in core

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sr_language_menu/trunk@78294 735d13b6-9817-0410-8766-e36946ffe9aa
Require TYPO3 6.0.7

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sr_language_menu/trunk@78295 735d13b6-9817-0410-8766-e36946ffe9aa
Set version to 6.0.2

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/sr_language_menu/trunk@78297 735d13b6-9817-0410-8766-e36946ffe9aa