ActiveMerchant won't work in Rails 3.1 -- 3.1 removed activesupport/core_ext/kernel/requires.rb

[joevandyk]

rails/rails@eff5d9a#activesupport/lib/active_support/core_ext/kernel

But it's still being used here: https://github.com/Shopify/active_merchant/blob/master/lib/active_merchant.rb

[joevandyk]

I don't think ActiveMerchant will work in Rails 3.1 until this gets fixed, by the way.