Add possibility to create Ical feeds for all apps

assigned to @ZugBahnHof

created merge request !975 (merged) to address this issue

mentioned in merge request !975 (merged)

Note to self: maybe something wrong with icalendar and django-ical library, iirc not all ical fields respected

django-ical internally usese icalendar.

This uses following fields, as defined in RFC 5545:

https://github.com/collective/icalendar/blob/master/src/icalendar/cal.py#L443

There are however more recent additions to said specification, for example RFC 7986, which adds multiple new fields, such as the field COLOR, which is at least somewhat relevant for chronos.

closed with merge request !975 (merged)

mentioned in commit 51f09e95