* Cache - this hits the directory a lot during full Auth/Authz usage.
* Recipes - We could handle some default recipes in the documentation for
different usage patterns.
* Tests - We don't do any but the most cursory of tests
(13:22:23) jayk: karpet: yah. the ability to define the user class to use
in config would make the module much more flexible.
able to customize without so much hacking around.