First release

ping @mac_nibblet @ocramius

I still need to change the various namespaces to Hydrator (@weierophinney, I suppose I'm not allowed to use Zend\Hydrator namespace here ? Although that would be nice if this refactor is accepted it would allow us to use it.

I'm just thinking about something: it appears the basic HydratorInterface is the same (extract and hydrate) method. This means that maybe, I could make this Hydrator actually extends the Zend\Stdlib\Hydrator\HydratorInterface, and then everything should work even for components like Zend\Form. Iirc those components are only using the extract / hydrate method, which should not cause any BC then.