Natural order for ordered room list, missing space
Fix server_tz in format[Date]Time
Fully migrate modify/create room form to new db
Avoid querying attribute values in a loop
Validate 'notification email' attribute as emails
Proper indentation of the room form template
ReservationOccurrence bulk creation and cleanup
Overlap methods added to ReservationOccurrence
Fixed ReservationOccurrence bulk creation with TZ
Generalized BarList2Dictionary helper

* Created group_list method
* Removed unnecessary class
* Renamed iterators.py
Prevent overlap checks between different rooms
Moved iterdays to indico.util.date_time with rrule
Refactored Bars and removed unncessary methods
Fixed photo_id reference in RoomMiniDetails tpl
Adapted RoomBookingCalendar to new backend
Room BookingForm populate form from request
Adapted view of BookForm page to new backend

* Adapted template
* Removed unused endpoints and methods
Booking form fields render with WTForms
Post-WIP fixes
Fixed format_time not handling timezone