First Data payment plugin

Added the version for Nop 3.3

Added the version for 3.4.  This also includes an optional PO field that can be captured along with the CC info.  The PO number is appended to the Authorization Transaction ID in the Order Details.

Updated for 3.5

In previous versions I was smashing some info into the Transaction Ids but now on 3.5 the CustomValues field will give you a nicer view of that same data on the order details screen.

Updated for 3.6

First Data has renamed their Gateway product to Payeezy but I have been in touch with them and their is no plan to change the API I'm using in the plugin.

Updated for 3.7

The 3.7 version has been updated to allow different settings per store.  The 3.8 version has also been released.

A Payeezy gateway plugin is coming in the next week or two that sends card details straight to the processor and keeps your site out of the PCI loop.  I'll make a separate thread when it launches.

3.9 version added

All versions have been updated to use TLS 1.2 ahead of FirstData disabling 1.0 and 1.1 support soon.

Support for 4.0 has been added.

The versions for 3.8, 3.9, and 4.0 have added support for Hosted Payment Pages.  The credit card information is entered on Payeezy's site via an iframe on your store.  

More information in this blog post: https://bitshiftweb.com/first-datapayeezy-payment-pages

Hosted Payment Pages support ported back to the 3.6 and 3.7 versions.