This is rather different to all our existing testing, probably because
it was just written earlier.
Convert this all to curl calls like everything else. Don't use direct
IP addresses, but use the hostnames. Drop the --insecure flags as the
certificates cover the hostnames now. Also drop the separate ipv6
testing as some hosts don't have ipv6; what we are really interested
in is if the apache config is responding correctly, not the test node
networking setup.
Change-Id: I489055e89bfd8dd05487985dd408767b870c3980
ed485c1bbf