Add the server (videobridge) region to jingle#316

Merged

bgrozev merged 4 commits intojitsi:masterfrom bgrozev:add-server-region

Sep 17, 2018

+369-119

Commits on Sep 7, 2018

ref: Refactors the way extensions are added to Jingle packets.
bgrozev
committed

Commits on Sep 14, 2018

feat: Adds the bridge region to session-initiate packets.
bgrozev
committed

Commits on Sep 17, 2018