Resolve CE-1893 "Fix deleted name handling"
The (current) Naming BE responds with http status code 204 (instead of 404) if trying to request a UUID that does not exist in its DB - so we needed to handle this situation.
The solution-candidate is deployed on DEMO and TEST (on DEMO the IOC ...060 and ...070 name will not exist at the moment the deployment was done, most probably the name was deleted and re-created for them).