[xwiki-users] Tag/baseline for wiki or space

Hi xwiki people, Is there a possibility to have something like tags or baselines for complete wiki or particular space? What I mean is possibility to use the power of navigation between pages as usual with condition that all pages revision in this mode would belong to this "tag" or just have modification date not later than specified. I have noticed "SVN Integration (make it possible to store and edit wiki pages in SVN)" in Survey on XWiki Features ( http://www.xwiki.org/xwiki/bin/view/Main/SurveyXWikiFeatures), but this topic looks obsolete as last modification was done in January 2010. Background is that my team currently uses xwiki for requirements management on a software project and it is vital to have baselines. Alternatively export to PDF/RTF could be used, but firstly it refuses to handle some of pages as is (we've created several classes with customized sheets), and secondly it would require intensive tailoring of output to get nice laconic document (exclude pages that are not relevant, make headers correct relevantly to hierarchy, etc.) Greetz, Andrey Stoliarov