In the VM config file port forward information is captured in the
Snapshot defition as well as the VM definition. This causes duplicates
in port forward entries if the file is queried for all available
network adapters. Querying the VM config file for the the Network
Adapters only part of the Machine definition resolves this and
yields the most up to date port forward info.
Rescue any address errors logging them and ignoring the address. Update
how the host address is determined based on the network configuration.
Host address will be either the lowest address assignable via dhcp
configuration or first address available within the configured subnet.
Adds an override for the #read_network_interfaces when hostonlynetworks
are in use to properly identify the hostonly network information from
the guest. This also adjusts the IP provided for the network to be
the first in the subnet.
