Created the storage abstraction layer.
Created the user model and the fs create method.
Make the unit tests work with 2.6.
Change debug default to False to protect users.
Extended the app with user storage.
Modify the bootstrapping for cleaner interface.

* The bootstrapping needed updates because eventually it will need to be
  decoupled from all the file access that it does now.
Add find_by_id for the login manager.
Authentication uses the user storage.
Modify templates to enable logging in with Persona.
Remove dead import.
Hook Persona into user storage.
Update the admin user if the configuration changes.
Add email validation to user creation.
Merge pull request #20 from mblayman/persona

Add Persona as a login capability