[TASK][TEST] A few functional tests for Tx_Restdoc_Reader_SphinxJson

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/restdoc/trunk@75368 735d13b6-9817-0410-8766-e36946ffe9aa
[TASK][TEST] Extract the table of contents

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/restdoc/trunk@75373 735d13b6-9817-0410-8766-e36946ffe9aa