Adds mute and kick functoinality avaialable for the focus of the conference.
Makes some log messages more appropriate.
Fixes focus restore in the case of only 2 participants and one of them reloads.
Don't try to access runtime after determining it is null. Pull request by mduggan.
Merge branch 'master' into sctp_data_channels
Replaces focus endpoint name "fix_me_focus_endpoint" with it's actual XMPP resource.
Adds experimental active speaker detection.