Merge remote-tracking branch 'upstream/bbb-2x-mconf' into cleanup-old-1.1-apps

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

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

...gbluebutton/endpoint/redis/AppsRedisSubscriberActor.scala

akka-bbb-transcode/.gitignore

akka-bbb-transcode/README.md

akka-bbb-transcode/build.sbt

akka-bbb-transcode/project/Build.scala

akka-bbb-transcode/project/build.properties

akka-bbb-transcode/project/plugins.sbt

...bluebutton/transcode/api/DestroyVideoTranscoderReply.java

...uebutton/transcode/api/DestroyVideoTranscoderRequest.java

...java/org/bigbluebutton/transcode/api/InternalMessage.java

...bluebutton/transcode/api/RestartVideoTranscoderReply.java

...uebutton/transcode/api/RestartVideoTranscoderRequest.java

...g/bigbluebutton/transcode/api/StartVideoProbingReply.java

...bigbluebutton/transcode/api/StartVideoProbingRequest.java

...igbluebutton/transcode/api/StartVideoTranscoderReply.java

...bluebutton/transcode/api/StartVideoTranscoderRequest.java

...bigbluebutton/transcode/api/StopVideoTranscoderReply.java

...gbluebutton/transcode/api/StopVideoTranscoderRequest.java