plugin=diff is not implemented.
http://yellow.ribbon.to/~tuotehhou/index.php?%2BSL%2B%E8%87%AA%E5%AE%9A%E7%BE%A9%E5%88%97%E3%81%AE%E3%82%BD%E3%83%BC%E3%83%88
plugin=diff is not implemented.