Instantiates all classes in the structure and wraps each function.
The reason I created this was so that I could walk the entire tree of express controller classes, instantiate each of them, and then wrap each of their methods in a special response handler.
If you don't know why you'd want to do that, you probably don't need this.
Take a look at the test to get a good idea of it's purpose.
npm i -S instawrap