In small deployments, for instance when there is only one server for all
participants, the region doesn’t mean anything so we can remove the
elements instead of sending an empty value.
* Allow focus to be a bare or full JID (thanks @teowoz & @Tellyo)
* If extdisco fails, just continue without STUN/TURN (thanks @teowoz &
@Tellyo)
* Updated deps for new colibri protocol crate
* rustfmt
linkmauve
Jasper Hugo