Port Blank Canvas to use WebSockets

[andygill]

Use websockets, and replace canvas-comet.

[jhmcstanton]

I'm definitely reading this out of context, but would it be possible (or even make sense) to port to a more general transport layer? What is coming to mind would be something like an open type family with a websockets instance and canvas-comet instance. Then we could also add other instances as needed or they become interesting. Not sure how easy/reasonable/useful this would be with the current design though.

[andygill]

Have a look at https://github.com/ku-fpg/javascript-bridge. Its a generic bridge that happens to use web sockets.