[FEATURE] Make path separator of search result configurable

This patch makes the hard coded path separator ("/") of the
indexed_search search result configurable with TypoScript.
You can use option split syntax to wrap each page title separately.

It also makes getPathFromPageId() return already
htmlspecialcharsed string.

Resolves: #23156
Releases: master
Change-Id: I76dc55518ffb0702d669b043249dc70fc9492d82
Reviewed-on: http://review.typo3.org/36001


Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>