Calendar: Add 'has-end?', 'has-due?' and 'has-duration?' into SExp
Is there any chance we can get support for
has-due? in an ecal backend s-expression?
Used workaround for now:
has-start? and make sure this property is set. Although I'm not sure if all CalDAV clients follow this behaviour. For details see this PR.
Displaying a list of Scheduled Tasks in the elementary Tasks app: