++++++++++++++++++ * fix problem with recurring payments * add created/modified/author auto fields
0.4.2
++++++++++++++++++ * fix problem with other IPN types
0.4.1
++++++++++++++++++ * cancel order after returning to failure URL
0.4.0
++++++++++++++++++ * allow to set up encrypted PayPal form
0.3.0
++++++++++++++++++ * fixes and improvements to the sandbox/production functionality * reverse sandbox logic - if no `PAYPAL_TEST`, the sandbox view would return production so nobody can pay through sandbox on production server