Require login for meeting ical

We make use of the information about the member to render it, so we
cannot render it without having a user. So instead of crashing, require
the login.

Author: mhagander

postgresqleu/membership/views.py

@@ -251,6 +251,7 @@ def webmeeting_by_key(request, meetingid, token):
     return _webmeeting(request, key)
 
 
+@login_required
 def meeting_ical(request, meetingid):
     # Get the ical info about a meeting
     meeting = get_object_or_404(Meeting, pk=meetingid)