Add MaxMind's geoipupdate utility. mmdb files are downloaded to /var/GeoIP
by default. The user should update /etc/GeoIP.conf with their API key and
DB choice, currently set to country only. So as not to exceed MaxMind's
download limitations, the user should manually run the utility or set up a
cron job.

Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>