
As mentioned in the README, this adds the dynamic configuration for unbound on hosts. If there is a ipv6 route, it will set forwarding to ipv6 servers, otherwise use ipv4. This is ported from the configure_mirror.sh script. We add a basic test to integration tests Change-Id: I70b41e45f3d53b191742533c2f3b6c0b6e6c2339