5.7.0

[+] New version of PaypalPlus : Paypal Checkout
[+] Paypal Checkout - Extension Pay Upon Invoice (PUI)
[+] Paypal Checkout - Extension ACDC
[+] Paypal Checkout - Extension APM
[+] Paypal Checkout - Extension Paypal Wallet
[+] Paypal Checkout - Sending tracking number on PUI orders
[*] Bugfixes