.subscribe method on accessorized object

[brendanjerwin]

So a client can subscribe to all changed properties in one place.

[brendanjerwin]

This will not register a change if a property of a property is changed.

For example, if obj has objectProperty, when obj is accessorized, objectProperty will become an accessor and the value of objectProperty will also be accessorized, for convenience. However, if a property on the value of objectProperty is changed, a change notification will not be registered on obj. You will have to subscribe with obj.objectProperty().subscribe() to get change notifications from that object.