Inconsistent find() behavior

[ssimms]

In WebService::Braintree::Customer, both create() and find() are supposed to return a Result object with the customer() method available, according to the POD. create() does this as expected, but find() returns the actual customer object instead.

Looking through the various Gateway modules, most of the find() methods return a Result object, but three don't:

• CustomerGateway
• MerchantAccountGateway
• SubscriptionGateway

Changing these three to match the rest will break existing code, but that probably makes more sense than having some modules work one way and some another (which is how I found the inconsistency). The fix is to remove the ->customer or equivalent call after _make_request in each module's find() method.