Automatic HTML builds on test.csswg.org

Hello everyone!
I've set up automatic HTML builds of every *.xht file in the approved/
and contributors/*/submitted/ folders. So about a minute or so after
you check in, you should see a .htm version of your .xht file on
   http://test.csswg.org/source/
For an example, see
   http://test.csswg.org/source/contributors/hp/submitted/css2.1/page/

What this means:
   * .htm files in your submitted/ folder will not show up on
        http://test.csswg.org/source/
   * .xht files in your submitted/ folder will automatically get a .htm buddy
   * Parse errors are reported in
       http://test.csswg.org/source/parse-errors
     New parse errors should show up within a minute or two. The list
     gets cleared and rebuilt daily.

I hope this makes the test contribution process easier.

The Python source for the HTML conversion script is available at
   http://test.csswg.org/source/tools/ make-html.py
It uses the lxml parsing library and a patched version of the html5lib
serializer for the conversion.

~fantasai