* Refactor paymentinfo to payment_info, resolve#499
* Fix calling of object attribute on tuple
* Minor update to setup documentation
* Do not use short words for typochecks
* Text clarification
* Refactor paymentinfo to payment_info, resolve#499
* Include data migration for existing event settings, resolve#499
* 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
* add ajax and dummy api response
* add preview <p> blocks
* finalise order_placed setup
- use <pre> for mail preview
- create dummy data in backend
* fix i18n text conversion
* create fragment template for mail preview
* support i18n in mail preview view
* apply mail fragment in all mail settings
fix mistake in input[lang=en] flag style
add dummy data for all placeholders
apply fragment template to all fields
add exclude option to fragment template
* remove migration file
* add translation mapping & fix field label
remove hardcoded field label
add transblock for translation file
* add test for mail setting preview
* fix code style in preview class
* bug fix in mail preview view
- fixed localised date values
- added locale index mapping
- added tests on multi-language event
- enhanced dummy data
