Configure: fixed style of include directories.


git-svn-id: svn://svn.nginx.org/nginx/trunk@5014 73f98a42-aea0-e011-b76d-00259023448c
Configure: fixed GeoIP library detection.


git-svn-id: svn://svn.nginx.org/nginx/trunk@5015 73f98a42-aea0-e011-b76d-00259023448c
GeoIP: IPv6 support.

When using IPv6 databases, IPv4 addresses are looked up as IPv4-mapped
IPv6 addresses.

Mostly based on a patch by Gregor Kališnik (ticket #250).


git-svn-id: svn://svn.nginx.org/nginx/trunk@5016 73f98a42-aea0-e011-b76d-00259023448c