Merge branch 'ritzalam-work-on-meeting-lifcycle-2' into bbb-2x-mconf

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

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

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

...rc/main/scala/org/bigbluebutton/core/apps/GuestsApp.scala

...sentation/PresentationConversionCompletedPubMsgHdlr.scala

...presentation/PresentationConversionUpdatePubMsgHdlr.scala

...ps/presentation/PresentationPageGeneratedPubMsgHdlr.scala

...luebutton/core/apps/users/ChangeUserEmojiCmdMsgHdlr.scala

...luebutton/core/apps/users/GetUsersMeetingReqMsgHdlr.scala

...ebutton/core/apps/users/LockUserInMeetingCmdMsgHdlr.scala

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

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

...rg/bigbluebutton/core/apps/users/MuteUserCmdMsgHdlr.scala

...igbluebutton/core/apps/users/RegisterUserReqMsgHdlr.scala

...button/core/apps/users/UserBroadcastCamStartMsgHdlr.scala

...ebutton/core/apps/users/UserBroadcastCamStopMsgHdlr.scala

...n/core/apps/users/UserConnectedToGlobalAudioMsgHdlr.scala

...e/apps/users/UserDisconnectedFromGlobalAudioMsgHdlr.scala

...luebutton/core/apps/users/UserJoinMeetingReqMsgHdlr.scala

...g/bigbluebutton/core/apps/users/UserLeaveReqMsgHdlr.scala