lib/render.js tests passing.

More walker and oakstache changes to whip the code generator into shape. The
code is hacky, but it's working.

Either I need to make the code generator more robust, or it's time to start
getting todo app, reftests, and gentests working again.
All tests passing.

After a LOT of debugging and adding unit tests, redoak is finally passing all
tests with its new template parser!

I'm scared to even try this with todo.html.
TODO app works.