Fix to make shipping address from data passed from PayPal, per spec

Implementing this fix: django-oscar#153

paypal/express/views.py

@@ -336,6 +336,7 @@ def get_shipping_address(self, basket):
         parts = ship_to_name.split()
         if len(parts) == 1:
             last_name = ship_to_name
+            first_name = ''
         elif len(parts) > 1:
             first_name = parts[0]
             last_name = " ".join(parts[1:])
@@ -408,18 +409,18 @@ def post(self, request, *args, **kwargs):
 
         # Create a shipping address instance using the data passed back
         country_code = self.request.POST.get(
-            'PAYMENTREQUEST_0_SHIPTOCOUNTRY', None)
+            'SHIPTOCOUNTRY', None)
         try:
             country = Country.objects.get(iso_3166_1_a2=country_code)
         except Country.DoesNotExist:
             country = Country()
 
         shipping_address = ShippingAddress(
-            line1=self.request.POST.get('PAYMENTREQUEST_0_SHIPTOSTREET', ''),
-            line2=self.request.POST.get('PAYMENTREQUEST_0_SHIPTOSTREET2', ''),
-            line4=self.request.POST.get('PAYMENTREQUEST_0_SHIPTOCITY', ''),
-            state=self.request.POST.get('PAYMENTREQUEST_0_SHIPTOSTATE', ''),
-            postcode=self.request.POST.get('PAYMENTREQUEST_0_SHIPTOZIP', ''),
+            line1=self.request.POST.get('SHIPTOSTREET', ''),
+            line2=self.request.POST.get('SHIPTOSTREET2', ''),
+            line4=self.request.POST.get('SHIPTOCITY', ''),
+            state=self.request.POST.get('SHIPTOSTATE', ''),
+            postcode=self.request.POST.get('SHIPTOZIP', ''),
             country=country
         )
         methods = Repository().get_shipping_methods(