Use count to check if an class or table name exists in an indexing instruction

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/esolr/trunk@79926 735d13b6-9817-0410-8766-e36946ffe9aa
Allow only properties with public getter to be indexed

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/esolr/trunk@79929 735d13b6-9817-0410-8766-e36946ffe9aa