This example creates an async, evented app that can do the following.

* Broadcast messages to all connected websockets originating from a
master control server.
* Proxy requests sent via websocket to HTTP through a master
control server

It's broken into three parts
* service.rb: The async core, written in dripdrop/eventmachine/zeromq
* client.rb:  A Test websocket client
* service.rb: A test HTTP web-service that could beb used to control messages

To run.

In one terminal (in dripdrop root)
ruby -I lib/ example/complex/server.rb

In another terminal (Websocket client)
cd example/complex && ruby client.rb

In a third terminal (Minimal webapp in sinatra)
cd example/complex && ruby service.rb