fix nil panic when lobby connections leave

connection.go

@@ -74,7 +74,7 @@ func (c *Connection) RunCommand(name string, args ...string) {
 func (c *Connection) ListCommands() {
 	c.Printf("\n")
 	c.Line()
-	c.Printf("- Available Commands\n")
+	c.Printf("- Available Commands in state: %s\n", c.ConnectionState.String())
 	c.Line()
 	commands := c.Commands()
 	names := make([]string, len(commands))
@@ -135,7 +135,9 @@ func (c *Connection) Printf(template string, args ...interface{}) (int, error) {
 
 func (c *Connection) Close() error {
 	log_info("player disconnecting: %s", c.Name())
-	c.game.Quit(c)
+	if c.game != nil {
+		c.game.Quit(c)
+	}
 	if c.Conn != nil {
 		return c.Conn.Close()
 	}

lobby.go

@@ -108,7 +108,7 @@ var newGameCommand = Command{
 	handler: func(c *Connection, args ...string) {
 		c.Printf("Starting a new game...\n")
 		game := gm.NewGame()
-		log_info("Created game: %s", game.id)
+		log_info("%s Created game: %s", c.profile.name, game.id)
 		go game.Run()
 		c.game = game
 		c.Printf("Now playing in game: %s\n\n", game.id)
@@ -136,6 +136,7 @@ Usage: join [game-code]`, " \n\t"))
 		}
 		id := args[0]
 		c.game = gm.Get(id)
+		log_info("%s Joining game: %s", c.profile.name, c.game.id)
 		c.SetState(SpawnRandomly())
 		c.game.Join(c)
 	},