Refactor: split code into several django apps (we call them modules).

dav_base/urls.py

@@ -0,0 +1,9 @@
+from django.conf.urls import url
+from django.contrib import admin
+
+from . import views
+
+urlpatterns = [
+    url(r'^$', views.RootView.as_view(), name='root'),
+    url(r'^djangoadmin/', admin.site.urls),
+]