Added support for client and order code.
Update to the names of the Order and Client codes.
More updates to make heroku happy.
Remove Client Code and Add vatnum
Fix to order code
added tax information to the order item
Force a precision of 2 decimals for VAT
Rounding the cents to 2 decimals.
First Name and Father Last Name are no longer mandatory for clients.
Fix to the amount error.
Enables deletion of order items.