ADD: added sub module dav_submission for supporting Manuel Hark with

his 150 Jahre DAV submission process.

dav_submission/urls.py

@@ -0,0 +1,8 @@
+from django.conf.urls import url
+
+from . import views
+
+urlpatterns = [
+    url(r'^$', views.UploadView.as_view(), name='root'),
+    url(r'danke', views.SuccessView.as_view(), name='success'),
+]