IPv6 support

[VitisEK]

Please add IPv6 support. It seems that nginx is not configured --with-ipv6.
Nodejs (port 81) is listening on IPv6 if it is configured.

[wuast94]

would like to see that too. ipv4 is lagacy and ipv6 should be implemented :) hope to see this soon :)

[Technikte]

+1, would like to see IPv6 support..since I got at home dual stack from my provider.