Fix more Django 2.0 deprecation warnings around URLconfs.

lms/djangoapps/commerce/api/urls.py

@@ -3,6 +3,7 @@ API URLs.
 """
 from django.conf.urls import include, url
 
+app_name = 'commerce'
 urlpatterns = [
     url(r'^v0/', include('lms.djangoapps.commerce.api.v0.urls', namespace='v0')),
     url(r'^v1/', include('lms.djangoapps.commerce.api.v1.urls', namespace='v1')),

lms/djangoapps/commerce/api/v0/urls.py

@@ -5,11 +5,12 @@ from django.conf.urls import include, url
 
 from . import views
 
-BASKET_URLS = [
+BASKET_URLS = ([
     url(r'^$', views.BasketsView.as_view(), name='create'),
     url(r'^(?P<basket_id>[\w]+)/order/$', views.BasketOrderView.as_view(), name='retrieve_order'),
-]
+], 'baskets')
 
+app_name = 'commerce'
 urlpatterns = [
-    url(r'^baskets/', include(BASKET_URLS, namespace='baskets')),
+    url(r'^baskets/', include(BASKET_URLS)),
 ]

lms/djangoapps/commerce/api/v1/urls.py

@@ -3,16 +3,17 @@ from django.conf.urls import include, url
 
 from . import views
 
-COURSE_URLS = [
+COURSE_URLS = ([
     url(r'^$', views.CourseListView.as_view(), name='list'),
     url(r'^{}/$'.format(settings.COURSE_ID_PATTERN), views.CourseRetrieveUpdateView.as_view(), name='retrieve_update'),
-]
+], 'courses')
 
-ORDER_URLS = [
+ORDER_URLS = ([
     url(r'^(?P<number>[-\w]+)/$', views.OrderView.as_view(), name='detail'),
-]
+], 'orders')
 
+app_name = 'commerce'
 urlpatterns = [
-    url(r'^courses/', include(COURSE_URLS, namespace='courses')),
-    url(r'^orders/', include(ORDER_URLS, namespace='orders')),
+    url(r'^courses/', include(COURSE_URLS)),
+    url(r'^orders/', include(ORDER_URLS)),
 ]