Functioning Storage Module, MySQL, Registration...

- Storage now is setup so there can be multiple storage engines (MySQL,
SQLite, XML, JSON, etc.)
- MySQL Storage engine is functioning via an abstraction layer for
faster querying of data.
- Registration now checks for existing user.
- Registration now checks for existing email address.
- Registration now sends out activation email (need to set a URL
variable)
- Activation URL can activate user account.
- $form_errors was changed to global “$context” so that more than just
errors can be passed from an action back to the template. For errors,
notifications, and other various information from the logic and
back-end.