Uses django channels instead of tornado for the autoupdate. Therefore
tornado is nolonger a dependency of OpenSlides (but channels).
This uses websockets instead of SockJS.
Use the flag insecure in the start command to provide static files serving.
Use a new session backend that has a ForeignKey to User.
- Used raw SQL for createing default projector during inital migration.
- Removed default_password and hidden agenda items from autoupdate data for some users.
- Removed old get_collection_and_id_from_url() function.
- Use ng-cloak for hide template parts while loading.
- Set html lang attribute dynamically (Fixes#1546)
- Clean up: Rename 'dashboard' to 'home'.
- Show duration of speech in minutes. (Fixes#1882)
- Save agenda specific stuff for customslides. (Fixes#1887)
- Remove title from QuickEdit from.
- Checkbox for item.closed is now visible for manager only.
- Agenda list view: Show list of speakers link also for normal users.
- Improve slide templates: Show agenda item number and subtitle.
- Fixed agenda title for motions and assignments.
(Don't load motions and assignmetn in agenda app.)
- Added missing seach template.
countdowns, messages, scale/scroll/edit current slide
Use global serverOffset.
Fixed#1645 (wrong time of projector clock).
Show countdown description on projector slide.
Added custom slide projector element class.
Added welcome slide as custom slide.
Added user slide projector element class.
Added clock, countdown ans message projector elements.
Renamed SignalConnectMetaClass classmethod get_all_objects to get_all (private API).
Added migrations to core app.
Fixed and wrote tests.
Updated CHANGELOG.
