simplified the code that sends messages to redis from bbb-apps

.../scala/org/bigbluebutton/client/ClientGWApplication.scala

...n/scala/org/bigbluebutton/client/MessageSenderActor.scala

...main/scala/org/bigbluebutton/client/MsgToRedisActor.scala

.../scala/org/bigbluebutton/client/SystemConfiguration.scala

...a/org/bigbluebutton/client/bus/JsonMsgToAkkaAppsBus.scala

...ala/org/bigbluebutton/client/bus/MsgToRedisEventBus.scala

...rg/bigbluebutton/client/meeting/AllowedMessageNames.scala

...main/scala/org/bigbluebutton/client/meeting/Meeting.scala

...scala/org/bigbluebutton/client/meeting/MeetingActor.scala

...rg/bigbluebutton/client/meeting/MeetingManagerActor.scala

...rc/main/scala/org/bigbluebutton/client/meeting/User.scala

...in/scala/org/bigbluebutton/client/meeting/UserActor.scala