- renamed gruppenadministration to gruppenmanagement
- added additional columns to gruppenmanagement filterwidget
- improved comments
- write public.tbl_log every time user is added or deleted from a group
- Berechtigung "lehre/gruppemanager" needed for managing groups
- added column "aktiv" to benutzeroverview
- group manager are deleted together with their group
- check: generated groups cannot have manager
- changed phrases
- show error dialog when json error returned
- zebra table
- hide filter header for non-filtered columns
- empty input field after adding Benutzer
KarpAlex