Replaced own country selection with django-countries package.

dav_events/choices.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 from django.utils.translation import ugettext_lazy as _
+from django_countries import Countries
 
 
 class ChoiceSet(object):
@@ -32,6 +33,12 @@ class ChoiceSet(object):
         return self._labels[code]
 
 
+class CountryChoiceSet(Countries):
+    first = ['DE', 'AU', 'CH', 'FR', 'IT']
+    first_repeat = True
+    first_break = '--'
+
+
 ACCOMMODATION_CHOICES = ChoiceSet([
     ('NONE', _(u'Keine (tägliche Anreise)')),
     ('biwi', _(u'Biwak')),
@@ -41,13 +48,7 @@ ACCOMMODATION_CHOICES = ChoiceSet([
     ('OTHER', _(u'Andere Unterkunft (zusätzliches Feld)')),
 ])
 
-COUNTRY_CHOICES = ChoiceSet([
-    ('DE', _(u'Deutschland')),
-    ('AU', _(u'Österreich')),
-    ('CH', _(u'Schweiz')),
-    ('FR', _(u'Frankreich')),
-    ('IT', _(u'Italien')),
-])
+COUNTRY_CHOICES = CountryChoiceSet()
 
 DEADLINE_CHOICES = ChoiceSet([
     ('month', _(u'Einen Monat vorher')),