[FORGE] updating sockets

[Juan Pablo Carbajal]

Hi all,

I guess is time to release a new sockets package, even if only to
remove the deprecation warning.

Since a while I am trying to get something nice working to connect
Octave and Python. I found ØMQ [1] and I thought we should pimp up the
socket package to use ØMQ + some package creator (I am looking at JSON
and MSGPACK).

What do you think of this?
Do you see any problems (like license issues, etc... it shouldn't ØMQ is LGPL)
Do you have suggestions?