Log Message:
-----------
Update timezone data files to release 2007h of the zic database.
Might as well have the latest when we wrap 8.3beta1.
Modified Files:
--------------
pgsql/src/timezone/data:
africa (r1.6 -> r1.7)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/africa?r1=1.6&r2=1.7)
asia (r1.7 -> r1.8)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/asia?r1=1.7&r2=1.8)
southamerica (r1.7 -> r1.8)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/southamerica?r1=1.7&r2=1.8)