pgsql: Sync timezone data with 2007g zic release.

Log Message:
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Sync timezone data with 2007g zic release.

Tags:
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REL8_2_STABLE

Modified Files:
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    pgsql/src/timezone/data:
        africa (r1.4.2.1 -> r1.4.2.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/africa?r1=1.4.2.1&r2=1.4.2.2)
        antarctica (r1.4 -> r1.4.2.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/antarctica?r1=1.4&r2=1.4.2.1)
        australasia (r1.4.2.1 -> r1.4.2.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/australasia?r1=1.4.2.1&r2=1.4.2.2)
        europe (r1.6.2.1 -> r1.6.2.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/europe?r1=1.6.2.1&r2=1.6.2.2)
        leapseconds (r1.5.2.1 -> r1.5.2.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/leapseconds?r1=1.5.2.1&r2=1.5.2.2)
        northamerica (r1.6.2.1 -> r1.6.2.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/northamerica?r1=1.6.2.1&r2=1.6.2.2)
        zone.tab (r1.6.2.1 -> r1.6.2.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/zone.tab?r1=1.6.2.1&r2=1.6.2.2)