add log for join room for league use

ygopro-server.coffee

@@ -1971,6 +1971,7 @@ class Room
       for player in @get_playing_player() when player and player != client and player.challonge_info.id == client.challonge_info.id
         ygopro.stoc_die(client, "${challonge_player_already_in}")
         return false
+    log.info("Player #{client.name} joined room #{@name}")
     client.setTimeout(300000) #连接后超时5分钟
     client.rid = _.indexOf(ROOM_all, this)
     @connect(client)

ygopro-server.js

@@ -2635,6 +2635,7 @@
           return false;
         }
       }
+      log.info(`Player ${client.name} joined room ${this.name}`);
       client.setTimeout(300000); //连接后超时5分钟
       client.rid = _.indexOf(ROOM_all, this);
       this.connect(client);