- completely rewrote the wins_srv.c code. It is now much simpler, and

- completely rewrote the wins_srv.c code. It is now much simpler, and
gives us a good grounding to properly support multiple wins servers
for different interfaces (which will be coming soon ...)

- fixed our wins registration failover code to actually do failover!
We were not trying to register with a secondary wins server at all
when the primary was down. We now fallback correctly.

- fixed the multi-homed name registration packets so that they work
even in a non-connected network (ie. when one of our interfaces is not
routable from the wins server. Yes, this really happens in the real
world).