Reprazent/ruby-paypal — pull request #3 by JKring (2012-08-24 20:45:31+00:00)
Title: Fixed make_nvp_call for Ruby 1.9.3

1.9.3 enforces the [form data must be provided as a Hash mapping from String to String](http://ruby-doc.org/stdlib-1.9.3/libdoc/net/http/rdoc/Net/HTTP.html#method-c-post_form) rule. make_nvp_call did not enforce that rule. So masspay calls were failing with ambiguous error messages. This resolves that issue.