Add websocket support

[nico1510]

we need to set up a websocket to talk to clients

[nico1510]

what's your alternative ? If you feel adventurous feel free to set up wai to support http2 so we can use server push events

[nico1510]

First we'll implement it and then we'll think of a use case and if there is none then we'll make one up. You should read a bit about resume driven programming because that's the technique we'll be using in this project.