Fixed #46 -- Added a plugin to send out emails

src/pretix/plugins/sendmail/signals.py

@@ -0,0 +1,23 @@
+from django.core.urlresolvers import reverse, resolve
+from django.dispatch import receiver
+from django.utils.translation import ugettext_lazy as _
+
+from pretix.control.signals import nav_event
+
+
+@receiver(nav_event)
+def control_nav_import(sender, request=None, **kwargs):
+    url = resolve(request.path_info)
+    if not request.eventperm.can_change_orders:
+        return []
+    return [
+        {
+            'label': _('Send out emails'),
+            'url': reverse('plugins:sendmail:send', kwargs={
+                'event': request.event.slug,
+                'organizer': request.event.organizer.slug,
+            }),
+            'active': (url.namespace == 'plugins:sendmail' and url.url_name == 'send'),
+            'icon': 'envelope',
+        }
+    ]