Add new remote command:

- hosts: display connected hosts, or NONE if disconnected (surrounded with double quotes).

RemoteControl.h

@@ -38,6 +38,7 @@ enum REMOTE_COMMAND {
 	RCD_DISABLE_NETWORK5,
 	RCD_DISABLE_XLX,
 	RCD_CONNECTION_STATUS,
+	RCD_CONFIG_HOSTS,
 	RCD_NONE
 };