This change is from the awesome example that was in #239.

So basically, each V8 wrapper object will need to store all of the objects that it's C object has in it's own private wrapper object. Any getters/setters for these objects will have to unwrap these private variables to access the internal data.

We can't just create wrapper classes on the fly when the user requests data since when those wrapper classes are destroyed they also destroy the data that they wrapped.

I'm assigning @maxkorp to take care of this. If you have any questions feel free to ask.