Active Merchant 1.29.3, activating test/sandbox mode and international customers

[lvxn0va]

• For some reason, AM 1.17.0 would not initialize the catarse_paypal_express gem. I had to upgrade the AM version and dependencies in Gemfile and Gemfile lock to 1.29.3 inorder for it to startup and not give me NameError: uninitialized class variable @@gateway in CatarsePaypalExpress::Payment::PaypalExpressController
• In the Catarse Rails Console I had to enter:
  Configuration.create!(name: "paypal_test", value: "true")

Otherwise PP goes to main site and not Sandbox. Might want to add that to the readme

• Also, is there a way to override the default currency established in the active_merchant.rb? Something like:
  Configuration.create!(name: "paypal_default_currency", value: "US")

[cmthakur]

same problem here.