plugin's small fix
plugin from onethink...
addon file
插件采用Hook机制；增加jquery.confirm；数据库更新，添加addons和hooks两个表；
插件清理。
small fix
Merge remote-tracking branch 'remotes/XJH1994/beta' into beta

Conflicts:
	Application/Admin/Controller/CustomController.class.php
	Application/Admin/View/Custom/plugin.html
	Application/Common/Conf/config.php
	Application/Common/Conf/tags.php
merge fixed