Better messaging and better rule implementation

Room/Lobby.cs

@@ -21,13 +21,13 @@ public class Lobby : RoomType
 
     public override void OnConnect(ConnectionInstance connection)
     {
-        var joinMessage = new JoinMessage(connection.Id, connection.Name + " has joined the room.");
+        var joinMessage = new JoinMessage(_room.Connections, connection);
         _room.BroadCast(new RoomMessage<JoinMessage>("JOIN", joinMessage));
     }
 
     public override void OnDisconnect(ConnectionInstance connection)
     {
-        var leaveMessage = new LeaveMessage(connection.Id, connection.Name + " has left the room.");
+        var leaveMessage = new LeaveMessage(connection);
         _room.BroadCast(new RoomMessage<LeaveMessage>("LEAVE", leaveMessage));
     }
 }