Tutorial to work with Graphcool

[pbassut]

Can we have a guide to get this working with graphcool subscriptions?
I tried to use WebSockets but I get a 400.
Looks like there's an initial handshake that should be done first.

[edvinerikson]

I will not have the time to do this my self. If you or anyone else would like to do this I will be happy to merge it in. :)