Breakout rooms are terminated from the main parent room.

...n/java/org/bigbluebutton/core/api/IBigBlueButtonInGW.java

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

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

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

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

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