How should this info be reflected in AtomPub?

Options:
1. Location Header - Where does this go? The documentId whould be mapped to Atom Entry. It seems very weird that on a delete of a content stream, the server redirects the client to the atom entry
2. New CMIS-specific header. E.g., CMIS-ObjectId: <id>. However this was not a good option earlier. Maybe that has changed.

This items needs to be resolved before 274 can be reflected