For bare metal deployments, the list IP of the last IP of the subnet
and 20 IPs before are reservered for neutron public IPs.
A new function to subtract a number from an IP was added.
Really fixed the logic for skipping 10 IP for VIPs was flipped to treat
no_dhcp with static IPs as a special case.
Removed a false print statement that the foreman VM is running.
Consolidated two identical print messages with the public IP range.
Change-Id: I189b9440dafd98e49d9a147515810e44b97ab256
Signed-off-by: randyl <r.levensalor@cablelabs.com>