(tz) Embed tzdata2012b into the TZUpdater tool

2012a tzdata

antarctica current best known timezone info for various
antarctic bases for the winter of 2012

asia Armenia has abolished summer time

australasia
Tokelau copied Samoa and swapped sides of the
International Data line last December. NB: this
change affects current timestamps.

europe Spelling corrections for some French names in comments.

leapseconds
Bulletin C43 incorporated (a leap Second will occur
2012-06-30 at 23:59:60 UTC) Bulletin C42 was also
incorporated (but never released) - it said nothing
very interesting (no leap second 2011-12-31).

northamerica
New zone America/Creston created for an area in
British Columbia that was previously (and apparently
incorrectly) considered identical to Dawson Creek.
Also, some corrections to 1918 summer time end dates
in several Canadian zones.

southamerica
Chile has extended Summer time in the 2011/2 summer.
The Falkland Islands now have it permanently (continuing
the 2011 experiment.) This "permanently" is a guess,
it apparently is certain for 2012 (as certain as these
things ever are) and considered likely into the future.

zone.tab
New America/Creston zone added, and a typo in the entry
for Europe/Samara corrected.
Right after 2012a releases, some more changes needed to be released soon
so 2012b is released.

2012b

The only real change is to the start date for summer time in Cuba this year.
The end date is not yet certain, so just leave it as we have it
(last Sun in Oct) and we'll see what happens in September or October
(probably). Since there is no discernable pattern to the start dates,
I'm also proposing leaving that for 2013 as we had assumed it would be
for 2012 (second Sunday in March). It has been that more years recently
than anything else (just not last year, or this year, but they've not been
the same either.)

The excess tab from the zone.tab file is also gone.