Fix Pre-filter for SQL Grouped function in List.

In Method "prefilterSetting" didn't return back $afilterGrouped and in
Method "getPrefilterArray" didn't have $afilterGrouped.
Merge remote-tracking branch 'upstream/master'
resolved
lang update
lang updates
Merge branch 'master' of github.com:Fabrik/fabrik
lang upates
lang update, and new script to create transifex config file
added transfex language config file generator
Merge branch 'apzentral-master'
fixed: csv export (with include filters option selected) was not taking into account advanced search values