Fix problem with health check feature discovery
Fix problem with health check feature discovery

Because of missing return statement, Jicofo was
sending health check even though the bridge does
not support them.

jitsi/jicofo,aaronkvanmeerten/jicofo,jitsi/jicofo,aaronkvanmeerten/jicofo,aaronkvanmeerten/jicofo,jitsi/jicofo,jitsi/jicofo