Use local participant count (not conference count) for graceful shutdown. (#1612)
Use local participant count (not conference count) for graceful shutdown. (#1612)

We have a known bug where remote participant counts, and thus conferences, can
get stuck in some cases; don't let that block graceful shutdown.
jitsi/jitsi-videobridge,gpolitis/jitsi-videobridge,jitsi/jitsi-videobridge,jitsi/jitsi-videobridge,jitsi/jitsi-videobridge,jitsi/jitsi-videobridge,gpolitis/jitsi-videobridge,gpolitis/jitsi-videobridge,jitsi/jitsi-videobridge,jitsi/jitsi-videobridge