Feature: add a "Web sockets" add-on

[sc0ttj]

So it's easier to do chat rooms, collaborative tools, simple multiplayer games, etc.

See:

• https://github.com/lukeed/sockette
• https://github.com/giantmachines/redux-websocket
• https://github.com/storeon/websocket
• https://socket.io/get-started/chat