Changes

1.2 (recommended for django-SHOP version 1.2)

Add support for Django-3.0.
Fix new PayPal requirement: Add additional costs not reflected in list of ordered items.
Drop support for Django-2.0 and lower.
Drop support for Python-2.7.

1.0.1

Fix #6: PayPal's create payment now is invoked by the server.

1.0

Adopted to django-SHOP version 1.0