[JoelMcCracken]

I've thought about this a good bit independently, and I want to be able to do a few things:

- Add line-change/diff-specific commentary. This needs to be within the context of a larger commentary/set of changes, as usually the changes are not independent, and in fact relate to simultaneous constraints which inform your chosen solution.

- Add some structure to a list of commits in a branch. I'd like a hierarchy, in fact. I've thought about trying to emulate this by making sub branches and then merging them into a parent branch, but it seemed like it would be a big pain.

Anyway, I've love to see some software that could help with this!