new file:   conf/foreign.conf.php
new file:   conf/song.conf.php
	new file:   doc/help.html
	new file:   doc/help.md
	new file:   doc/intro.html
	new file:   doc/intro.md
	new file:   doc/intro.txt
	new file:   doc/tongji.png
	new file:   doc/weibo.png
	deleted:    lib/util.php