Parsing works!

OK, so my parsing unit test passes 139 individual tests having to do with all aspects of tokenization, parsing, and building of nodes and nodal structure. I'm independent of Parse::RecDescent and Parse::Indented now, and I'm entirely using Class::Declarative::Parser objects to parse everything.

I still have a little work to adapt the existing classes to their new non-XML::xmlapi existence, but that seems to be going well. So in a couple of days, I guess I'll be starting templates, with a much more satisfactory parse-and-build regime going into the exercise.

Progress!