ch05 - "Modules talking to modules"

The code example in this section demonstrates how you could wire too modules together with eventemitters, but I wonder if it's _too_ simple. It doesn't really demonstrate "why".

I wonder if you could make it a _little_ more elaborate. I think the problem, is that first of all you `setName` on `AndBang` which isn't very intuitive. I expect to set names on people, not apps. Then when setName happens you `/*do something cool*/`. Something which just showed why as well as how these two modules might interact I think would be easier to follow.