This reverts commit 43a481bc.
http://zentao.jdshangmen.com/bug-view-761.html
http://zentao.jdshangmen.com/bug-view-763.html
http://zentao.jdshangmen.com/bug-view-750.html
http://zentao.jdshangmen.com/bug-view-714.html
http://zentao.jdshangmen.com/bug-view-700.html
http://zentao.jdshangmen.com/bug-view-208.html
http://zentao.jdshangmen.com/bug-view-745.html
http://zentao.jdshangmen.com/bug-view-754.html
http://zentao.jdshangmen.com/bug-view-741.html