"changed" field should be deleted

>Al these uses are not very well served by the 'changed:' field right
>now. People can change them at will (fun to confuse people), the
>timestamp is not UTC (very annoying for people living in other
>timezones) and it doesn't provide the time of changes (interesting if
>you make more then one change a day).

I think we look at this field in a very different way. For all I
care it could be my own internal person-id and date that is
indecipherable to anyone else. It doesn't matter to me about
UTC either because my own time zone doesn't change... perhaps 
this would matter to an international backbone provider with NOC's
in multiple time zones... so I guess I can see that point, but
only if you happen to be such an entity.

Why even define it to be an email address? Why not just make it

	change:	company-internal-id company-internal-date-fmt