Log Message:
Update from 1.4.6 to 1.4.7
Remove patch-ad since upstream is not accepting it (originated in 2008)
and it no longer applies.

This revision also adds a lot of experimental ipv6 support.

Full release notes:

        * Upd timezone.c Add SX, BQ and CW remove AN and FX ( Boris Zentner )
        * Add support for the new types in geoiplookup6 ( Boris Zentner )
        * Add new database types GEOIP_CITY_EDITION_REV0_V6,
          GEOIP_CITY_EDITION_REV1_V6, GEOIP_DOMAIN_EDITION_V6,
          GEOIP_ORG_EDITION_V6 and GEOIP_ISP_EDITION_V6 ( Boris Zentner )
        * Remove AN and FX. Add SX, BQ and CW ( Boris Zentner )
        * Fix possible segfault in geoipupdate if the connection disappear
          unexpected. ( Boris Zentner )
        * Add sanity check for geoipupdate-pureperl.pl ( Boris Zentner )
        * Add GEOIP_USERTYPE_EDITION and GEOIP_USERTYPE_EDITION_V6
          datatypes ( Boris Zentner )
        * Add new functions GeoIP_is_private_ipnum_v4 and GeoIP_is_private_v4
          ( Boris Zentner )
        * Add new functions GeoIP_teredo and GeoIP_enable_teredo.
          teredo is enabled by default ( Boris Zentner )
        * Fix output of geoiplookup for unknown or private regions.
            ( Boris Zentner )
        * Fix geoipupdate-pureperl.pl to accept more product codes.
            ( Boris Zentner )
        * Fix minor output issue in geoipupdate -v ( Boris Zentner )
        * Add support for various databases. ( Boris Zentner )
        * Add experimental teredo support ( Boris Zentner )
        * Fix possible buffer overflow in conjunction with
            http_proxies ( Elso Andras )
        * Remove memcpy/bcopy macro for BSD ( Boris Zentner )
        * Add GeoIP_lib_version and GeoIP_cleanup ( Ladar Levison )
        * Upd Makefile.vc ( Thomas Winzig )
        * Fix typo in DK,18,Midtjylland ( Boris Zentner )
        * Update libGeoIP/regionName.c with FIPS codes 20100810 ( Boris Zentner )
        * Fix continent codes ( Boris Zentner )
        * Fix 3letter country codes for ATA, BVT, IOT, CXR, CCK, ATF, HMD,
            MYT, SGS and UMI ( Boris Zentner )
        * Fix typo/segfault in GeoIP_id_by_name_v6 ( Boris Zentner )
        * Update libGeoIP/regionName.c with FIPS codes 20100529 ( Boris Zentner )
        * Remove buffered IO functions, to fix issues with dup'ed file
            descriptors ( Boris Zentner )
        * Fix very minor memleak in geoipupdate ( Boris Zentner )
        * Add GEOIP_CITYCONFIDENCEDIST_EDITION, GEOIP_LARGE_COUNTRY_EDITION
            and GEOIP_LARGE_COUNTRY_EDITION_V6 database types ( Boris Zentner )
        * Update libGeoIP/regionName.c with FIPS codes 20100422 ( Boris Zentner )
        * Update libGeoIP/regionName.c with FIPS codes 20100420 ( Boris Zentner )
        * Update libGeoIP/regionName.c with FIPS codes 20100221 ( Boris Zentner )
        * Add missing timezones ( Boris Zentner )
        * Add missing include for Windows 2000 ( Jaap Keute )
        * 'GeoIP Database up to date' and 'Updated database' prints to stdout
            instead of stderr ( Boris Zentner )
        * Add missing GeoIPRecord_delete to geoiplookup.c ( Piotr Kaczuba )
        * Add some IPv4 helper functions
            unsigned long GeoIP_addr_to_num(const char *addr);
            char *        GeoIP_num_to_addr(unsigned long ipnum); ( Boris Zentner )
        * Fix default name for the accuracy radius database to GeoIPDistance.dat \ 
( Boris Zentner )
        * Add GEOIP_CITYCONFIDENCE_EDITION database type. ( Boris Zentner )
        * geoiplookup use GeoIPDistance.dat files if avail ( Boris Zentner )
        * Fix geoiplookup/geoiplookup6 output, when the databaseinfo string is
            not avail. ( Boris Zentner )
        * Change continent code for RU from AS to EU ( Boris Zentner )
        * Add GEOIP_ACCURACYRADIUS_EDITION database type. ( Boris Zentner )
        * Add GEOIP_LOCATIONA_EDITION the database to map back from binary to
            the csv database ( Boris Zentner )
        * Change Turkey's continent code from Asia to Europe ( Boris Zentner )
        * Rename _iso_8859_1__utf8 to _GeoIP_iso_8859_1__utf8 ( Boris Zentner )
        * GEOIP_ORG_EDITION, GEOIP_ISP_EDITION, GEOIP_DOMAIN_EDITION and
            GEOIP_ASNUM_EDITION databases return UTF8 results, if gi->charset \ 
is set
            to GEOIP_CHARSET_UTF8 ( Boris Zentner )
        * Avoid unnecesary call to gettimeofday when GEOIP_CHECK_CACHE is not \ 
set ( John Douglass )
        * Delayed loading of changed database files for 60 seconds. To avoid
          reading halve written databases ( Boris Zentner )
        * Update README.OSX for Leopard  and Snow Leopard ( Boris Zentner )
        * Add more IPv6 functions ( Boris Zentner )
            const char *GeoIP_country_code_by_addr_v6 (GeoIP* gi, const char *addr);
            const char *GeoIP_country_code_by_name_v6 (GeoIP* gi, const char *host);
            const char *GeoIP_country_code3_by_addr_v6 (GeoIP* gi, const char *addr);
            const char *GeoIP_country_code3_by_name_v6 (GeoIP* gi, const char *host);
            const char *GeoIP_country_name_by_addr_v6 (GeoIP* gi, const char *addr);
            const char *GeoIP_country_name_by_name_v6 (GeoIP* gi, const char *host);
        * Make sure that GeoIP_*_v6 functions refuse GEOIP_PROXY_EDITION and
            GEOIP_NETSPEED_EDITION databases ( Boris Zentner )
        * Update libGeoIP/regionName.c with FIPS codes from 20090723 ( Boris \ 
Zentner )
        * Fix geoipupdate's -v option to not change the license filename ( Thom May )
        * Fix geoipupdate's exit code ( Thom May )
        * Add support for ASNUM_EDITION ( Boris Zentner )
        * Fix -i output for larger values, sign issue ( Boris Zentner )
        * Add -i flag for more information on netmask, range_by_ip and the \ 
current network range ( Boris Zentner )
        * Add support for DOMAIN_EDITION database type ( Boris Zentner )
        * Fix apps/geoipupdate-pureperl.pl output layer on W32 ( Boris Zentner )