Added io.Reader and io.Writer wrapper

This finalizes the work on getting the server to support multiple encodings for
players and spectators.

protocol.go

@@ -275,7 +275,7 @@ encodingLoops:
 			}
 		}
 
-		p := NewPlayer(player_id, ws, game.bw)
+		p := NewPlayer(player_id, ws, game.bw, encoding)
 		log.Printf("%s: made a player: %s", gid.Id, p.Id)
 
 		convertedStats := map[string]Stats{}
@@ -330,7 +330,7 @@ encodingLoops:
 			gid.Id,
 		)
 	case "spectator":
-		s := NewSpectator(player_id, ws, game.bw)
+		s := NewSpectator(player_id, ws, game.bw, encoding)
 		log.Printf("%s, %s: about to register this spectator", gid.Id, s.Id)
 		game.sregister <- s
 		log.Printf("%s, %s: registered spectator", gid.Id, s.Id)