Updated ClientDetail to set the ExpressRegionCode avoiding fedex errors.

Author: jcartmell

fedex/base_service.py

@@ -129,6 +129,7 @@ def __set_client_detail(self):
         ClientDetail.AccountNumber = self.config_obj.account_number
         ClientDetail.MeterNumber = self.config_obj.meter_number
         ClientDetail.IntegratorId = self.config_obj.integrator_id
+        ClientDetail.Region = self.config_obj.express_region_code
         self.ClientDetail = ClientDetail
 
     def __set_transaction_detail(self, *args, **kwargs):