More options for payment methods (sepa, sofort) and invoicing for authorize requests

Details in PR #19

Additional fields that can be set when capturing or authorising server requests, in connection with payment methods and invoicing. No need to upgrade from 2.1.0 unless you need these new features.

Additional features and some bugs

A few minor bugs fixed uncovered during testing, but not logged (by me or anyone else).

Pull requests 11 and 15. Support for invoice delivery in capture request plus some edge-case failures.

Fix PHP <5.6 compatibility issue

2.0.2

Fix PHP 5.3 compatibility issue.

Extended documentation

No functional changes otherwise.

First release

Additional documentation is on its way.

This release has very little in the way of tests. That is also on its way.

Handles:

• Shop Server: authorize/payment/capture/void/check card/notifications (back channel)
• Shop Front End: authorize/payment
• Shop Client: authorize/payment/check card

The check card function provides card tokenization. The Front End card tokenization can be used in conjunction with the Server authorize or payment. The Client API can also handle direct POSTs to the PAYONE gateway, with results on the redirect back and the notification back channel. So there are lots of ways to plug together this bunch of building blocks.