End-to-end test
End-to-end test

mandrel.test.integration_test exercises a bit of everything,
with no mocking:
* bootstrap file affecting search paths and logging config
* mandrel.config.Configuration subclasses proper retrieval
  of config and logger
* proper searching/prioritization of configuration files in
  a simple hierarchy.

This could get built out much more, but for now it suffices.

ethanrowe/python-mandrel