Bug 1389089

Description of problem:
If you enter an IP address like:

   0.168.175.10

And then proceed with values shown, it will accept this address and it will ultimately get bound to the specified interface.

However in section 3.2.1.3 of RFC 1122 (https://tools.ietf.org/html/rfc1122) it states that addresses like these are reserved for finding out the full address of the hosts IP (i.e. its network portion).   Here is an excerpt:

    b)  { 0, <Host-number> }

        Specified host on this network.  It MUST NOT be sent,
        except as a source address as part of an initialization
        procedure by which the host learns its full IP address.

It should also be noted, that even though the address was indeed bound to the interface ssh complains it is an invalid argument:

   # ssh 0.168.175.10
   ssh: connect to host 0.168.175.10 port 22: Invalid argument

Version-Release number of selected component (if applicable):
QCI-1.1-RHEL-7-20161024.t.0

How reproducible:
every time

Steps to Reproduce:
1. assign an IP address with an initial octet of 0 in fusor installer
2. apply the changes

Actual results:
They are applied without error.

Expected results:
The address to be caught as an invalid IP.