Handle facet results

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/esolr/trunk@80071 735d13b6-9817-0410-8766-e36946ffe9aa
Completed grouping, code cleanup

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/esolr/trunk@80089 735d13b6-9817-0410-8766-e36946ffe9aa