* Upgrade Django to 3.0 and other dependencies to recent versions
* Fix otp version contsraint
* Remove six dependency
* Resolve some warnings
* Fix failing tests
* Update django-countries
* Resolve all RemovedInDjango31Warnings in test suite
* Run isort
* Fix import
* Update PostgreSQL version on travis
- [x] Data model
- [x] Enforce constraint
- [x] Filter order list
- [x] Set channel on created order
- [x] Products API
- [x] Order API
- [x] Tests
- [x] Filter reports
- [x] Resellers
- [ ] deploy plugins
- [ ] posbackend
- [ ] resellers
- [ ] reports
- [x] Ticketlayouts
- [x] Support in pretixPOS
* Refs #99 -- Fix stripe support for zero-decimal currencies
* Add new money formatting method
* Force decimal places in many places
* Locale-aware currency rendering
* Fix currencies in more places
* More currency fixes
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
* Added non-admission setting to event
`ticket_download_nonadm` now setting in storage. Still need logic for
order page/PDF generation.
Works on pretix/pretix#456.
* Download button considers `ticket_download_nonadm`
Modified Django tags to look at item admission attribute and
`ticket_download_nonadm` setting.
Works on pretix/pretix#456.
* Ticket output for non-admission disabled
PDFs/etc. will only be permitted/generated for items with the
`admission` attribute, or if the `ticket_download_nonadm` event setting
is true. Applies to single and whole-order ticket downloads.
Works on pretix/pretix#456.
* Fixed product exclusion in PDF output
Forgot PDF output was a plugin, now includes same check as base
`BaseTicketOutput.generate_order`.
Works on pretix/pretix#456
