v4.0.0-beta.2

Added

• Add a view to cancel reminder mails, link added in the footer of mails
• Prevent multiple join to BBB meetings
• Introduce anonymous_id mechanism
• Create a direct access to a video out of an LMS context for a public
  or LTI ressource, based on a liveregistration
• Auto-set in the localstorage anonymousId if it's set in the JWT token
• Persist live video participants
• Add a vertical slider on the live view, to resize the panel on the
  right (and close / open it)
• Add PATCH endpoint to update a LiveSession
• Add start and stop live recording
• Generate a JWT token to connect to jitsi
• Save livesession registration date

Changed

• rename LiveRegistration model in LiveSession
• Disable jitsi prejoin page
• Admin can access all LiveSession belonging to a video
• Move on-stage request functional (in Instructor view) from under
  the video to the ViewersList in the right panel
• Prevent students from joining the discussion anonymously

Fixed

• Allow to configure converse persistent store
• Show a specific message to students when BBB meeting ended
• Remove cancel button in student meeting join form
• Replace automatic meeting joining by a button
• Allow generated links in Django admin for objects in other applications
• Do not install the marsha Python package in site-packages
• Do not allow a lti user to change his email when he registers to a scheduled
  live
• Expose XMPP info for a live once this one started
• Continue stopping live even if input waiter fails
• Dispatch video in the websocket when start/stop recording
• Send registration email when livesession is updated and is_registered
  set to True
• Stop trying to start recording jitsi when this one is already live
• Live layout for teacher on smartphone
• Live recording actions visibility

Removed

• Remove email when the webinar started earlier
• Remove video constraint video_unique_idx