Release 6.17.1
- Extend address REST for creating/updating/deleting addresses
- Major refactorings for calendar and events
- Bugfixes for:
- Addresses and addressbooks
- Invoice export
- Finding event attendees
- Payment-deadline of debitors
- Migration problems
- Export bank transfers
- Forecast export
- Skilltree expand
- Clone debitor invoice -> update date of discount
- Debitor reference to deleted order positions
- Mass edit of timesheets
- Calendar abo URLs