Merge pull request #3293 from ritzalam/start-pause-stop-screen-sharing-with-webrtc

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

...luebutton/core/pubsub/receivers/UsersMessageReceiver.java

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

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

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

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

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

akka-bbb-fsesl/fs_conf_files/conf/dialplan/default.xml

akka-bbb-fsesl/fs_conf_files/conf/dialplan/public.xml

...ebutton/freeswitch/voice/freeswitch/ESLEventListener.java

...org/bigbluebutton/freeswitch/VoiceConferenceService.scala

...ebutton/common/messages/AllowUserToShareDesktopReply.java

...utton/common/messages/AllowUserToShareDesktopRequest.java

.../bigbluebutton/common/messages/MeetingCreatedMessage.java

...igbluebutton/common/messages/MeetingDestroyedMessage.java

bbb-screenshare/app/build.sbt