Watson-auth

- Added in some basic controller actions and views. These can be overriden.

- BC: Reset template location changes (auth/emails)
- Debug panel for authed users

- BC: Password reset (forgotten password) functionality added, new fields added to user class and moved config for form. Run `./console.py db:migrate revision --autogenerate` to generate the updated schema changes.
- BC: Refactor of configuration settings
- Ability to redirect user back to the previous non-authenticated page on successful login
- Custom validators can be used within the auth decorators
- Additional console commands to create roles and permissions
- Requires watson.db >= 2.3.0

- Now requires watson.db 2.0.0
- BC: role.key now used for validating role instead of role.name
- BC: Model declarative base moved from auth, now relies on watson.db