Could support for ipv6 be added please?

I see it binds to ipv4 only but ipv6 only hosts won't work for obvious reasons :)

root@es101:/home/paladox# netstat -tuln | grep 9206
tcp        0      0 0.0.0.0:9206            0.0.0.0:*               LISTEN   

there's no way to configure what to listen on as far as I can find.