added: mount params can have arguments (in parentheses)
added: mount params: withheader, withinfo, restrictcreatethread, only_root_can_remove,
can_use_emacs_on(level), can_use_mkdir_on(level),
added: table Item has 'subject' column now
removed: column 'subject' from table Content
git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@505 e52654a7-88a9-db11-a3e9-0013d4bc506e
