Quality control framework/XML Schema

The XML Schema doesn't exist yet for statistics, but here's the example so far.

<?xml version='1.0' encoding='utf-8'?>
<statistics type="apertium" version="1.0">
  <regressions>
    <regression timestamp="2011-05-24T23:48:58.393974">
      <title>Breton and French/Regression tests</title>
      <revision>23172</revision>
      <passes>380</passes>
      <fails>76</fails>
      <total>456</total>
    </regression>
  </regressions>
</statistics>