[Po4a-devel]Xhtml module

Ok, I gave up on HTML: HTML is a load of rubbish, and parsing all the rubbish that's out there would be enough to drive the Dalai-Lama to eat a raw cow (ok I may be exaggerating a little). Using Jordi's help from months ago, I got an Xhtml module that uses Xml.pm working in less than a couple of hours, and it seems to be working quite well. I'll submit another patch soon to update the tests. Y.