Proposal: v1beta3 API overhaul

Speculative change for some items from #1200:

* Metadata that applies to resources is split from APIMetadata on non-resource API objects
* Metadata is a sub field of objects
* Labels are on Metadata
* Pod current and desired state is split
* Name is used for pods instead of ID (UID is part of metadata, Name is part of resource) for idempotent creation #148 and #1216 
* PodTemplate is a Metadata carrying object as per #170
 * If replicationController gave way to a generic "replicator", then pod template could be both a nested struct and a real resource.
* A ScheduledPod and ScheduledPodList is what the kubelet sees as per #860
* Non-schema'd k/v values on Metadata as `Config` (better names welcome) as per #1201

Not changed yet:

* ReplicationControllers
* Services

EDIT: Moving to higher bandwidth document here: https://docs.google.com/document/d/1E_HNsbyocweD9zJHXbz5Xb9XPwBqvDnLHhGeBq15FlI/edit?usp=sharing
Spawned https://github.com/GoogleCloudPlatform/kubernetes/issues/1450

----- Original Message -----
> >  }
> >  
> > -func (*ServerOpList) IsAnAPIObject() {}
> > +// WatchEvent objects are streamed from the api server in response to a
> > watch request.
> > +type WatchEvent struct {
> > +	// The type of the watch event; added, modified, or deleted.
> > +	Type watch.EventType
> > +
> > +	// For added or modified objects, this is the new object; for deleted
> > objects,
> > +	// it's the state of the object immediately prior to its deletion.
> > +	Object runtime.EmbeddedObject
> > +}
> > +
> > +// TODO: for readability
> 
> Can't we embed a pointer?
>