* Autocheckin data model/cosmetics
* Expose automatically checked-in OrderPositions
* Expose automatically checked-in OrderPositions in CSV/PDF Exports
* Fix some tests, try to fix MultiStringField/CheckboxSelectMultiple
* Actually fix MultiStringField/CheckboxSelectMultiple.
(Not pretty, but it works)
* Fix more tests
* Squash migration
* Also fix CSV/nameparts-test
* Changes for Autocheckin code-review
* Perform Auto-Checkins through new core plugin
* Update config-doc to reflect also checkinlists
* Explicitly output AutoCheckin Yes/No for CSV-Export (+ fix test)
* Move autocheckin from plugin to service
* API-doc
* Fix API-doc spelling
* Checkinlist-API and autocheckin order tests
* Performance improvement when reading checkinlists for autocheckin
Co-Authored-By: Raphael Michel <michel@rami.io>
* Autocheckin test for order created through API
* Resolve migration conflict
* Custom HTML email renderers
* Move inline_css call
* Small fixes
* New HTML mail style for pretix
* Thumbs
* Inlinestyle for notifications
* Documentation
* Set line-height