[Ietf-calsify] rrule in timezone components

[Nigel Swinson]

> I believe the original intent of that was to describe the case of an event 
> where the DTSTART and DTEND used different TZIDs. A single event 
> representing travel between locations with different timezones is one 
> example (though we can debate about the utility of using DTEND+different 
> TZID, vs DURATION). Your example of different events in different 
> timezones is also valid.
>
> I actually suggest removing the "This is necessary..." sentence 
> altogether, as we state further down:

I'd be happy with that too.  :o)

Nigel