If the new 'parent' keyword is specified for a host in a table,

If the new 'parent' keyword is specified for a host in a table,
inherit the state from another host with the specified Id; no
additional check will be for the inheriting host.  This helps in
scenarios with lots of IP aliases that all point to the same service
on the same host (like web hosting with many SSL domains).

discussed with pyr, tested in different setups