- handle create meeting request message

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

...ton/core/pubsub/senders/ReceivedJsonMsgHandlerActor.scala

...ton/core/pubsub/senders/ReceivedJsonMsgHandlerTrait.scala

...ala/org/bigbluebutton/endpoint/redis/RedisPublisher.scala

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

...core/pubsub/sender/ReceivedJsonMsgHandlerTraitTests.scala

.../org/bigbluebutton/common2/messages/BbbCoreEnvelope.scala

...ala/org/bigbluebutton/common2/messages/Deserializer.scala

.../main/scala/org/bigbluebutton/common2/util/JsonUtil.scala

...c/test/scala/org/bigbluebutton/common2/TestFixtures.scala

...rg/bigbluebutton/common2/messages/DeserializerTests.scala

...t/scala/org/bigbluebutton/common2/util/JsonUtilTest.scala

...b/src/main/java/org/bigbluebutton/api/domain/Meeting.java