Switch away from WS

[kurtextrem]

I think switching away from the WS lib might be a good idea, see here:

• Sending message on connection results in a close websockets/ws#751
• Nasty client memory leak websockets/ws#629
• 184 open issues
• 39 open PRs

Socket.IO is probably the best alternative choice, as others (like uWS) aren't easy to compile on Windows.

[plouc]

In fact, I was thinking about switching to uWS because of performance, Socket.IO does to much IMHO.
If you've got some problem on Windows, perhaps you should consider using Docker, the beta for Windows and OSX works very well.

[kurtextrem]

I thought about uWS as well, but sadly it doesn't compile on Windows yet.

[d2s]

Noticed that there are potential problems with ws as Gemnasium was warning about them:

Another potential reason to consider switching from it?

[plouc]

except from the required work, no :) Will consider it for Mozaïk 2

[plouc]

@kurtextrem #103 :)

[kurtextrem]

Cool - I'd say this counts as fixed. If anyone needs a hacky solution for v1 contact me.