Fix #678 -- Data shredders for personally identifiable information (#817)

* Add data shredders for PII

* First working shredder

* Add more shredders

* Add new shredders and download confirmation

* tmp

* PayPal, Stripe, banktransfer

* Add icon to logs

* Untested payment log shredders

* Add waiting list shredder

* First tests

* Add tests for shredders

* Improve templats, link to shredder

* Test payment info shredders

* More tests

* Documentation

* Fix enabled flag in payment provider overview

* Fix minor issues

src/pretix/control/urls.py

@@ -2,8 +2,8 @@ from django.conf.urls import include, url
 
 from pretix.control.views import (
     auth, checkin, dashboards, event, global_settings, item, main, orders,
-    organizer, pdf, search, subevents, typeahead, user, users, vouchers,
-    waitinglist,
+    organizer, pdf, search, shredder, subevents, typeahead, user, users,
+    vouchers, waitinglist,
 )
 
 urlpatterns = [
@@ -190,6 +190,10 @@ urlpatterns = [
         url(r'^orders/export/do$', orders.ExportDoView.as_view(), name='event.orders.export.do'),
         url(r'^orders/go$', orders.OrderGo.as_view(), name='event.orders.go'),
         url(r'^orders/$', orders.OrderList.as_view(), name='event.orders'),
+        url(r'^shredder/$', shredder.StartShredView.as_view(), name='event.shredder.start'),
+        url(r'^shredder/export$', shredder.ShredExportView.as_view(), name='event.shredder.export'),
+        url(r'^shredder/download/(?P<file>[^/]+)/$', shredder.ShredDownloadView.as_view(), name='event.shredder.download'),
+        url(r'^shredder/shred', shredder.ShredDoView.as_view(), name='event.shredder.shred'),
         url(r'^waitinglist/$', waitinglist.WaitingListView.as_view(), name='event.orders.waitinglist'),
         url(r'^waitinglist/auto_assign$', waitinglist.AutoAssign.as_view(), name='event.orders.waitinglist.auto'),
         url(r'^waitinglist/(?P<entry>\d+)/delete$', waitinglist.EntryDelete.as_view(),