Huge step forward

Carrot now has a small set of handler integration tests, and they all pass. This neccessitated the creation of a "minigrammarian", which, while having no document intelligence as the real Grammarian will, validates the concept of the Grammarian -- and the tests validate the "flock of handlers" concept.

The test was to parse the string

"preceeding text [tag content content content]]]\nNew para"

which was properly rendered into

1. A TEXT chunk, 'preceding text'
2. A TAG
3. A second TEXT chunk, 'content content content'
4. A terminal TAG markup (']')
5. A terminal TRIGGER markup (']]')
6. And a third TEXT chunk, 'New para'

This is awesome.