[App] Add an owner model.
[App] Add a session model.
Add documentation for running the app.
[App] Add a library to generate tokens.

Load up the models and expand the load path so Token can be loaded.
[App] Generate token for newly instantiated sessions.
[App] Set expiration time for newly instantiated sessions.
[App] Add method to Session to find valid session with a token.
Ignore tmp and log directories.
[App] Experiment with session authentication.

Added helpers and a controller extension to authenticate the current session
token in the headers.

Enabled logging.
Explain how to start a console for the app.
[App] Proof of concept authentication with session tokens.
[App] Add functional tests for authentication.
Refactor spec helpers.
[App] Add methods to coerce an Owner to YAML.
[App] Make sure find or create for owners works properly.
[App] Allow users to register their account. WIP.
Make specs green.
Use just what we need from ActiveSupport.
[auth] Use proper HTTP header name.
[API] Add authentication requirement for /me and /pods.