Export List: 1. filter expired, 2. added internal note.

dav_events/forms/events.py

@@ -57,6 +57,8 @@ class EventListExportForm(forms.Form):
                                                 'pickerPosition': 'bottom-left',
                                             },
                                             bootstrap_version=3))
+    expired = forms.BooleanField(required=False,
+                                 label=_(u'auch ausgelaufene Veranstaltungen auflisten'))
 
     def __init__(self, *args, **kwargs):
         super(EventListExportForm, self).__init__(*args, **kwargs)