Config inspiration

[Jeff Lindsay]

Thought these might be interesting reads, as the API and design of
config is directly inspired by these projects:

http://gunicorn.org/configure.html#configuration-file
Pure Python, no static config format

http://trac.edgewall.org/wiki/TracDev/ConfigApi
Our API is mostly inspired by Trac (esp the Option API)

https://github.com/twitter/configgy
Simple, general purpose configuration library with "groups". Config
files end up looking pretty similar to ours

https://docs.djangoproject.com/en/dev/topics/settings/
Definitely some influence, but obviously a different general approach