Refs #314 -- Read-only REST API (#513)

* initial commit

* API auth

* Hierarchical URLs

* Add session auth

* Strong hierarchy

* Add filters

* Add i18n fields, questions

* More viewsets and serializers

* Ticket download

* Add OrderPosition serializer

* View-level permissions

* More tests

* More tests

* Add basic API docs

* Add REST API to docs frontpage

* Tests for order endpoints

* Add invoice tests

* Voucher and waitinglist tests

* Doc draft

* order docs

* Docs on all viewsets

* Disable DRF docs, style sphinx, style browsable API

* Fix tests

* deprecated imports

* Test foo

* Attendee names

* Fix migration problems

* Remove browsable API, plugin integration

* Doc fixes

src/pretix/urls.py

@@ -1,5 +1,6 @@
 from django.conf import settings
 from django.conf.urls import include, url
+from django.views.generic import RedirectView
 
 import pretix.control.urls
 import pretix.presale.urls
@@ -15,6 +16,8 @@ base_patterns = [
     url(r'^jsi18n/(?P<lang>[a-zA-Z-_]+)/$', js_catalog.js_catalog, name='javascript-catalog'),
     url(r'^metrics$', metrics.serve_metrics,
         name='metrics'),
+    url(r'^api/v1/', include('pretix.api.urls', namespace='api-v1')),
+    url(r'^api/$', RedirectView.as_view(url='/api/v1/'), name='redirect-api-version')
 ]
 
 control_patterns = [