Currently the protocol actor is responsible for MUC management, see [JabberProtocol.scala](https://github.com/codingteam/horta-hell/blob/48b775dffb5c7dfcfb3a084f310c3f892366d209/src/main/scala/ru/org/codingteam/horta/protocol/jabber/JabberProtocol.scala#L55-L75). We should move that code to the room actor so the whole `JabberProtocol` actor will not fail if anything is wrong with any room (e.g. [horta is banned](https://github.com/codingteam/horta-hell/issues/357)).
Currently the protocol actor is responsible for MUC management, see JabberProtocol.scala.
We should move that code to the room actor so the whole
JabberProtocolactor will not fail if anything is wrong with any room (e.g. horta is banned).