new winix function: "seo", it allowes to edit subject, description and keywords for a page
description and keywords are stored in meta
git-svn-id: svn://ttmath.org/publicrep/winix/trunk@1179 e52654a7-88a9-db11-a3e9-0013d4bc506e
(html filter was used but they are mostly javascript files)
added: new Item::ContentType: ct_other
if an item has ct_other then the html filter is not used for the content
git-svn-id: svn://ttmath.org/publicrep/winix/trunk@1040 e52654a7-88a9-db11-a3e9-0013d4bc506e