- [x] Provide data model and configuration toggle
- [x] Allow to delete individual test orders
- [x] Add tests
- [x] Add a prominent warning message to the backend if test mode orders exist (even though test mode is off), as this leads to wrong statistics
- [x] Decide if and how to generate invoices for test orders as invoice numbers cannot be repeated or should not have gaps.
- [x] Decide if and how we expose test orders through the API, since our difference pull mechanism relies on the fact that orders cannot be deleted.
- [x] Decide if and how we want to couple test modes of payment providers?
- [ ] pretix.eu: Ignore test orders for billing
- [ ] Adjust payment providers: Mollie, bitpay, cash, fakepayment, sepadebit

- [x] Data model
- [x] display in order view in backend
- [x] review all usages of OrderPositions.objects
- [x] review all usages of order.positions
- [x] review all other model usages
- [x] review plugins
- [x] plugins backwards-compatible API?
- [x] decide on way forward for REST API
- [x] need to cancel fees
- [x] tests
- [ ] plugins
- [ ] gdpr
- [ ] reports
- [x] docs
* First stab at notification settings
* Add "global" setting for notification levels
* Trigger notification task
* Get users with permission for event
* Actually send notification emails
* More notifications
* Allow to turn off notifications
* Link in email to pause all notifications
* Add NotificationType to wordlist
* Add notification tests
* Add documentation
* Rebase fixes
* Ref #552 -- Add icon to expansible panels
Offer informative feedback to user by showing icons to indicate
expansible panels.
* Fix wrongly removed JavaScript line
Undo/redo
Useful toolbox
Font selection
Add text content
Use hex for colors
JS-side dump and load
Save
Load layout, proper undo/redo
First steps to Python rendering
More PDF rendering
Copy and paste
Buttons for keyboard actions
Splash Screen
Block unbeforeunload in dirty state
Remove debugging output
Preview
Upload new PDFs via the editor
Fix bugs during PDF reload, link in settings form
New default ticket
Add OpenSans BI
Custom fonts, fix tests
* New models
* CRUD UI
* UI for adding/removing team members
* Log display for teams
* Fix invitations, move frontend
* Drop old models (incomplete)
* Drop more old stuff
* Drop even more old stuff
* Fix tests
* Fix permission test
* flake8 fix
* Add tests fore the new code
* Rebase migrations