Add currency_charge configuration
Merge pull request #2 from josemarluedke/add_currency_charge_config

Add currency_charge configuration
use paypal notification.acknowledge to validate if the ipn is from paypal
created refund action to use in backer admin using active merchant refund methods
should be I18n.t instead only t in controllers
Merge pull request #3 from catarse/change_paypal_notification_integration

use paypal notification.acknowledge to validate if the ipn is from paypa...
Merge pull request #4 from catarse/refund_route

created refund action to use in backer admin using active merchant refun...
bump to 2.1.0
now we don't process the ipn if the payment_method is not paypal or null [#43309671]
bumped patch version number
when refund is failed show the paypal message
bump to 2.1.2