luci: ignore '::1' in realtime connections

luci ignores only 127.0.0.1 in real time connections.
The dnsmasq.init script sets up resolv.conf(s) as such.
With alternate DNS servers configured 'localhost' will
resolve to '127.0.0.1' or '::1'. The connections graph
will spam itself. openwrt/luci#996

Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>