Fix broken spec

Heya! Just noticed that `npm test` fails, so I thought I'd try and fix it. Turns out it's this commit: 2dced03ad9212d999246de337817da479b69a1dc

Anyway, not sure if I really like my fix, but it does make the specs pass and I think it's in the spirit of your direction. What do you think?

I get that we want to list out private functions, but the outer namespace shouldn't be considered a private function should it? Here's a screenshot of the result of `node bin/autodoc example/helloWorld.js` before my fix:

<img src="http://i.imgur.com/UxOCdqL.png">

And here's what it looks like after my fix, with another "private" function added:

<img src="http://i.imgur.com/N6JNK83.png">