Added support for Saferpay PROVIDERSET
Dropped useless Saferpay version
Order conditions are always always available

Return empty string if no fields are set
Allow to add custom order conditions using hook
CS
Added basic Billpay payment method
Auto-inject order conditions for Billpay AGB
Added label for payment method
Use POST method to submit payment data to Saferpay
Append XML data to Billpay request
Add form data type header and fix ampersand
Use a custom log file for Saferpay stuff
Do not allow BillPay if shipping address differs from billing address
Country must be uppercase
Must perform checkout even if capture=auth
Use Saferpay log file
CS
Added hook to customize the document template
CS
Store payment data in order and add to document template