[tz] Large scale changes proposed in 2014f

Paul Eggert eggert at cs.ucla.edu
Fri Aug 1 00:28:48 UTC 2014

Tim Parenti wrote:
> if we want to replace zone.tab with something better, we
> should take the time now to make sure its replacement doesn't
> unintentionally retain any major shortcomings of the previous version, so
> we don't find ourselves needing to supersede it again too soon.

I took the time to consider several possible replacements, and this one 
was the best: it is simple, easy to understand, upward-compatible, and 
addresses the problem.  Quite possibly we'll want to make further 
changes in the future, but no such change plausibly springs to mind 
right now, and one step at a time.

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