Log Message:
-----------
Update timezone mapping for Windows with new timezones added
in windows servicepacks.
Fix timezone mapping for "Mexico 2"
Modified Files:
--------------
pgsql/src/timezone:
pgtz.c (r1.57 -> r1.58)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/pgtz.c?r1=1.57&r2=1.58)