Description:
------------
I use the release 2006.11 of timezonedb on php 5.1.6. We are here at gmt-3( America/Sao_Paulo ) but the php is returning me gmt-2.
This problem begin on 15-Oct. The daylight saving here will begin on 05-Nov, but it was first previst to began in last 15-Oct.

Reproduce code:
---------------
print date_default_timezone_get();

= America/Sao_Paulo ( correct )

print date('O');
= -0200

I believe that the correct result is -0300.



Expected result:
----------------
<?
print date('O');
?>

-0300

Actual result:
--------------
<?
print date('O');
?>

-0200