[BUGFIX] Clear cache_treelist table in Install Tool

This is not implemented in the caching framework and
needs to be cleared manually.

Resolves: #67275
Releases: master,6.2
Change-Id: I05f4fb96eedff1002b843ef51b184bbd50493290
Reviewed-on: http://review.typo3.org/39916


Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>