Fixed #16734 -- Set script prefix even outside of requests

Thanks Tim Graham for the review.

tests/user_commands/management/commands/reverse_url.py

@@ -0,0 +1,10 @@
+from django.core.management.base import BaseCommand
+from django.core.urlresolvers import reverse
+
+
+class Command(BaseCommand):
+    """
+    This command returns a URL from a reverse() call.
+    """
+    def handle(self, *args, **options):
+        return reverse('some_url')