* BBB has specific completion indicator that need to be taken into account
* Fix mock requests so we can send participant id and then attach events to them
* Refactor slightly the broker to split meeting logic from request (decoding)
* Fix update completion state cron
* When loading a course with the Recent Activity block the bigbluebuttonbn_print_recent_activity
takes too much time to load the logs. Using the courseid (index of log table) improves the
time taken by the query.
* Only delete "Create" or "Update" logs when a recording has been effectively created
* Reschedule task if fail or logs are left over
* One task per meetingid
* The callback 'xxx_print_recent_activity' needed to be created in order to display
the activities in the block
* Use the print_recent_activity_note api function
Andrew Nicols