def userJoinedRoom(room, user):
    """
        User has joined a MUC room.

        This method will need to be modified inorder for clients to
        do something when this event occurs.

        @param room: The room the user joined.
        @type  room: L{muc.Room}

        @param user: The user that joined the room.
        @type  user: L{muc.User}
        """
