Add the base foundation for Djblets codebase documentation.
Review Request #7368 — Created June 2, 2015 and submitted — Latest diff uploaded
This introduces a new set of docs for documenting all the utilities provided by Djblets. Right now, we don't have any sort of high-level overview, but we do have autodocs for all the modules people would want to use.
Built the docs and looked through them. There's plenty to fix up still,
but this provides a pretty solid foundation.