ontech/zencart-paypal-wpphosted — pull request #4 by billj9000 (2014-06-03 14:42:12+00:00)
Title: Fix duplicate orders, language defines (English only) and tweak info sent to Paypal

Added the language defines necessary for the admin page.
Prevented IPN handler from generating a duplicate order.
Send the correct customer e-mail to PayPal (for some reason the billing info e-mail was empty).

Looks good enough to put on live trial so that's what I've done.