* Added AuthenticationResource to be managed by AuthenticationResponse implementations.
* ConfigSection now intercepts __getattr__() calls and returns None.
* Implemented FileAuthenticationRequest, FileAuthenticationResponse.
* Implemented FileAuthenticationService.authenticate().
* Implemented base class tests for AuthenticationRequest, AuthenticationResponse, AuthorizationRequest, AuthorizationResponse.
* Added tests for file-based authentication provider.
* Added additional documentation to code & tests.
* super() calls now omit parameters (yay!).
* Work towards PEP8 formatting.
* Re-added package __init__.py (for PyDev).