User Profiles

[JeremyCaney]

When an authenticated user accesses the site, check to see if a user profile is associated with that account and, if there isn't one, automatically create one based on their authenticated username.

A Content Type called UserProfile should be introduced to support this. This will support user-specific settings, as needed. Most notably, this would support the proposed User Roles functionality, providing different users with customized access to the editor.