Merge pull request #3411 from riadvice/unique-meeting-id-breakout-rooms

akka-bbb-apps/build.sbt

...ebutton/core/pubsub/receivers/MeetingMessageReceiver.java

...ain/scala/org/bigbluebutton/core/BigBlueButtonActor.scala

...main/scala/org/bigbluebutton/core/BigBlueButtonInGW.scala

...ain/scala/org/bigbluebutton/core/JsonMessageDecoder.scala

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

...s/src/main/scala/org/bigbluebutton/core/LiveMeeting.scala

.../src/main/scala/org/bigbluebutton/core/MeetingActor.scala

.../src/main/scala/org/bigbluebutton/core/MeetingModel.scala

...ain/scala/org/bigbluebutton/core/MessageSenderActor.scala

...apps/src/main/scala/org/bigbluebutton/core/Protocol.scala

.../main/scala/org/bigbluebutton/core/ProtocolMessages.scala

...src/main/scala/org/bigbluebutton/core/api/Constants.scala

...rc/main/scala/org/bigbluebutton/core/api/InMessages.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

.../test/scala/org/bigbluebutton/core/AppsTestFixtures.scala

...a/org/bigbluebutton/core/apps/BreakoutRoomsUtilSpec.scala