Move perm check into psb.


git-svn-id: http://opensvn.csie.org/pttbbs/trunk@6004 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
Clean up.


git-svn-id: http://opensvn.csie.org/pttbbs/trunk@6005 63ad8ddf-47c3-0310-b6dd-a9e9d9715204