[BUGFIX] Pagination in recycler is broken

Due to the use of a wrong _GP variable, the recycler can only load the
first two pages. Also, reset the paginator upon table change.

Resolves: #64652
Releases: master
Change-Id: I0519b5fd721e46f07e9b9e0003d812317d88660e
Reviewed-on: http://review.typo3.org/36450


Reviewed-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Tested-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>