when deleting an answer
added: ThreadInfo::Repair() method
will be used by 'fsck' winix function
added: plugins/groupitem
directory for a new plugin: 'groupitem'
git-svn-id: svn://ttmath.org/publicrep/winix/trunk@725 e52654a7-88a9-db11-a3e9-0013d4bc506e