since it has to be aware of the CM version. Add a Version() call to
GeniAuthority with goes asks the CM what version it is exporting.
Based on that, we know how to do a resolve of a component. Refactored
the code that was used in GeniAggregate when creating tunnels, since
that is where we have to Resolve components. This also turns up in
cooked mode.

Continuine moving towards a urn-only world. If a GeniAuthority or a
GeniComponent does not have the URN set locally in the DB, go back to
the clearinghouse and get it. Error if it is not known, and go bang on
the remote site to update and rerun register_resources.