added: column 'guest_name' to 'item' table

used when user_id is -1
added: mount parameters: thread_with_info, thread_with_header
added: function rm can remove threads



git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@506 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/mount.h

@@ -35,6 +35,8 @@ public:
 		desc,
 		withheader,
 		withinfo,
+		thread_with_header,
+		thread_with_info,
 		restrictcreatethread,
 		only_root_can_remove,
 		can_use_emacs_on,