New: Added Express Checkout support for Vipps
Improved: Made it possible for developers to add additional tabs to the checkout process.
Fix: Added margin between shipping packages.
Fix: Added fixes fro SpaSalon theme.
Fix: When license check fails, error is output on the screen.
Fix: Fix issue with NIF Portugal plugin
Fix: Fix issue with WooCommerce Square when an invalid card number is entered.
Fix: Fix issue with PayPal for WooCommerce 2.4.0
