- send destroy meeting to BBBActor when meeting ends

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

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

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

...sentation/PresentationConversionCompletedPubMsgHdlr.scala

...presentation/PresentationConversionUpdatePubMsgHdlr.scala

...ps/presentation/PresentationPageGeneratedPubMsgHdlr.scala

...utton/core/apps/users/LogoutAndEndMeetingCmdMsgHdlr.scala

...n/core/apps/users/MeetingActivityResponseCmdMsgHdlr.scala

...in/scala/org/bigbluebutton/core/apps/users/UsersApp.scala

...scala/org/bigbluebutton/core/running/HandlerHelpers.scala

...n/scala/org/bigbluebutton/core/running/MeetingActor.scala

...la/org/bigbluebutton/core/running/MeetingActorAudit.scala

...gbluebutton/core/running/MeetingExpiryTrackerHelper.scala

...ebutton/core/running/MeetingInactivityTrackerHelper.scala

...essage/handlers/meeting/DestroyMeetingSysCmdMsgHdlr.scala

...e2/message/handlers/meeting/EndMeetingSysCmdMsgHdlr.scala

...button/core2/message/handlers/users/UserJoiningHdlr.scala