Merge pull request #3294 from riadvice/breakout-room-logout-fix

akka-bbb-apps/scala/JsonTest.sc

...scala/org/bigbluebutton/core/JsonMessageSenderActor.scala

...c/main/scala/org/bigbluebutton/core/api/OutMessages.scala

...n/scala/org/bigbluebutton/core/apps/BreakoutRoomApp.scala

...scala/org/bigbluebutton/core/apps/BreakoutRoomModel.scala

...n/core/pubsub/senders/MeetingMessageToJsonConverter.scala

...bluebutton/messages/payload/BreakoutRoomsListPayload.java

...rg/bigbluebutton/red5/client/UserClientMessageSender.java

...ient/src/org/bigbluebutton/main/model/users/Conference.as

...g/bigbluebutton/modules/users/services/MessageReceiver.as

...igbluebutton/modules/users/views/RoomActionsRenderer.mxml