Add package for tests.
Add oauth2 validator and simple memory backend for auth credential storage.
Start of authentication bouncer (it accepts proxied requests and bounces those that don't authenticate).
More test skeletons.
Clean-up authentication backend interface definition.
Clean up in-memory authentication backend skeleton.
Remove extra copy of validator that ended up in backends.
Rename auth interface access token methods to be more descriptive.
Tests for in-memory auth backend.
Add module docstring for in-memory backend tests module.
Start of tests for request validator.
First tests for bearer token saving and validation.
Add more failure tests for bearer token authentication.
Add example Nginx configuration for bouncer.
Move example scopes into the module docstring.
Depend on go_api.
Remove backends -- it's probably clearer just to use validators as the interface for now.
First tests for validator.
First draft of validator.
Test for setting access token via header.