This contribution allows customers to close/delete their accounts.
Features:
------------------------------------------
- Customers could delete their accounts by providing their email address and password and click Delete.
- Customers will receive a confirmation email after deleting their accounts.
Features (optional):
-------------------------------------------
- All Reviews by the Customer who deleted his/her acount will be deleted.
- Account status in orders.
Based on "DELETE ACCOUNT" by Jordi (http://www.oscommerce.com/community/contributions,4799) and "Account Enhancement" by Andy82 (http://www.oscommerce.com/community/contributions,4898).