Fix exception when a certain type of invalid date is passed
Syntax fix for previous commit
Fix undefined variable `value`
Move event queryset filter to a separate function out from filter_queryset()
Add _clean_qp() to strip `event.` from query param names
Add get_queryset() to KeywordViewSet
Add get_queryset() to PlaceViewSet
Save original matko Keyword when importing Events
Save original helmet Keyword while importing Events
Enable multiple keyword and location id filter
Add filter by is_recurring_super field
Add free text filter
Add event permanency filter
Fix wrong way (lstrip) to get rid of prefix
Change correct Vuotalo in TPREK_MAP