Update to v3.0
Show PayPal logo as payment method on the checkout confirmation page
Shuffle configuration parameters around
update parameter description
Integrate api server connection test into module and remove the extra admin/ext/.. file
move debug email code to class function
add documentation link
change default server to live
Integrate api server connection test into module and remove the extra admin/ext/.. file
add documentation link
Add transaction response to the debug email
Add warning if curl is not enabled in PHP
remove unused variable