2009-08-30 Wakaba * ContentChecker.pm: Allow |xml:lang| in HTML document if the owner element is not an HTML element (HTML5 revision 3697). 2009-08-23 Wakaba * ContentChecker.pm: Allow in context where interactive content is disallowed (HTML5 revision 2392). 2009-08-16 Wakaba * HTML.pm.src: Dropped support for "XSLT-compat" and added "about:legacy-compat" (HTML5 revision 2725). 2009-08-16 Wakaba * HTML.pm.src: "" is now explicitly supported in the spec (HTML5 revision 2700). 2009-08-16 Wakaba * HTML.pm.src: Added support for