plugin=diff is not implemented.
http://yellow.ribbon.to/~tuotehhou/index.php?%2BAndroid%2B%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B9%E3%81%AE%E8%B5%B7%E5%8B%95%E6%96%B9%E6%B3%95
plugin=diff is not implemented.