Merge pull request #18124 from edx/jeskew/fix_some_django20_deprecation_warnings

Fix more Django 2.0 deprecation warnings around URLconfs.

common/djangoapps/entitlements/api/urls.py

@@ -1,5 +1,6 @@
 from django.conf.urls import include, url
 
+app_name = 'entitlements'
 urlpatterns = [
-    url(r'^v1/', include('entitlements.api.v1.urls', namespace='v1')),
+    url(r'^v1/', include('entitlements.api.v1.urls')),
 ]

common/djangoapps/entitlements/api/v1/urls.py

@@ -11,7 +11,7 @@ ENROLLMENTS_VIEW = EntitlementEnrollmentViewSet.as_view({
     'delete': 'destroy',
 })
 
-
+app_name = 'v1'
 urlpatterns = [
     url(r'', include(router.urls)),
     url(