Modified Hub to match the actual interface of the ZMQ sockets it uses, and made both in and out sockets ROUTER (DEALER does not report the sender)
Modified Hub to match the actual interface of the ZMQ sockets it uses, and made both in and out sockets ROUTER (DEALER does not report the sender)

With ZeroMQ 3.x, the need for two sockets will disappear anyway, so the current redundancy will go away at some point.

eallik/spinoff