Stripe: Inconsistency in specifying application fees for charges and refunds

[robinbrandt]

The way the Stripe gateway in ActiveMerchant handles the application_fee parameter for #authorize and #capture is different from the way it handles refund_fee_amount in refund for non fractional currencies (e.g. JPY) which is a bit confusing.

For example in order to create a fee of 6 JPY you would pass application_fee: 6. In order to refund the same amount you'd have to pass in refund_fee_amount: 600 because #localized_amount (https://github.com/activemerchant/active_merchant/blob/master/lib/active_merchant/billing/gateway.rb#L269) divides the value by 100 before it gets passed to the Stripe API.

ActiveMerchant version: 1.90

[curiousepic]

Marking this "of interest" before a cleanup of stale issues