* reporting: remove report.event.registration as it can be replaced by
pivot and graph views on event.registration model directly. The
custom SQL view does not add any valuable information;
* event: correctly take limitations from event category and check
minimum seats is lesser or equal to maximum seats;
* event: reorganize a bit the form view
* avoid some kind of random ordering of buttons;
* move seats availability directly in the form view;
* ticket page is now used only for ticketing purpose, not a mismatch
with seats;
* registration: attendees can be set as done only for confirmed events
to avoid confusion when working with draft events;
Misc usability
* event.type: rename event type to event category to have a unified
term across various event addons;
* event: stop tracking active field as it does not add interesting
information; it should not toggle everyday;
* event: track location as it does add valuable information;
* event: rename some labels to ease user experience;
* event.mail: add missing description and rec name;
- Preserved explicit 3rd-party copyright notices
- Explicit boilerplate should not be necessary - copyright law applies
automatically in all countries thanks to Berne Convention + WTO rules,
and a reference to the applicable license is clear enough.
Mitali Patel