Add capability for statistics gathering and reporting.
Make the default schema for XHTML include RDFa Lite 1.1 for consistency with the HTML default.
Make only one line declare the XHTML namespace in w3c-presets.txt.
Use fixed-point formatting for stat.html.
Added experimental support for ITS 2.0 in HTML5 validation
Added entry for HTML+ITS
Remove no-longer-used mathml3-strict.rnc.
Merge upstream MathML schema bug fixes. W3C bug 17482.

https://www.w3.org/Bugs/Public/show_bug.cgi?id=17482#c4
http://lists.w3.org/Archives/Public/www-math/2012Oct/0020.html
http://lists.w3.org/Archives/Public/www-math/2012Jul/0000.html
Make ImageReportAdviceBuilder deal with current wiki markup.

The markup generated by the backend of wiki.whatwg.org apparently
changed at some point recently. It now has a
<div id="mw-content-text"> wrapper around the content where it
didn't have one before, and the existing ImageReportAdviceBuilder
didn't seem to be expecting that and ended up failing with an NPE.

This change fixes it. It may not be the best way to fix it but
given that ImageReportAdviceBuilder is pretty fragile anyway, it
doesn't seem worth trying to finesse it right now.
Collect stats on input type (textarea, file-upload, entity-body).
Merged changes
Updated schemas to ITS 2.0 LC WD version
Added missing entry into catalog
storage encoding is optional
Added MIT license
Moved local ITS attributes exclusion to embed.rnc
Better datatype is used for IRIs
Rearrange the presets for consistency after the ITS landing.
Add checking for d attr of SVG <path>. b=945
Replace newlines with "↩ " in out=html errors.
r=hsivonen