paypal/rest-api-sdk-php — pull request #134 by bigwhoop (2014-10-15 20:31:20+00:00)
Title: \PayPal\Api\Invoice: Added missing $headers argument in \PayPal\Common\ResourceModel::executeCall() calls

This fixes the error `Object of class PayPal\Rest\ApiContext could not be converted to int' in /app/vendor/paypal/rest-api-sdk-php/lib/PayPal/Transport/PPRestCall.php:63`.