Pub/Sub Documentation error

[dev-nextprogress]

Environment

NetMQ Version:    N/A
Operating System: N/A
.NET Version:     N/A

Expected behaviour

Actual behaviour

On the pub/sub documentation sample, the publisher is documented like this:
pubSocket.Bind("tcp://localhost:12345");

But this only works when subscribers run also on localhost.
If I am not mistaken, to actually be able to serve multiple remote clients, it should be:
pubSocket.Bind("tcp://*:12345");

(asterisk instead of localhost)
See also http://zguide.zeromq.org/cs:wuserver

Steps to reproduce the behaviour

[fscopel]

I want to second this. I had been trying to get PUB/SUB working on a Xamarin Forms app for a couple days and the issue with SubscriberSocket not responding was actually on a server. I had set it up with pubSocket.Bind("tcp://localhost:5555");, once I changed it to pubSocket.Bind("tcp://*:5555"); the SubscriberSocket started responding.

[drewnoakes]

@dev-nextprogress, @fscopel please review #758 and verify whether it addresses the problem you encountered.