remove honcho in the dev environment (just use foregrounded supervisor)

using supervisor gives us the ability to restart entire processes on
code change (like the dispatcher and callback receiver)

docs/websockets.md

@@ -64,4 +64,3 @@ by the *daphne* server and our *asgi_amqp* implementation to broadcast messages
 
 ### Development
  - nginx listens on 8013/8043 instead of 80/443
- - uwsgi, daphne, and runworker are started with honcho instead of supervisord