D-Net

Fixed iteration

Handle the cases when the target of P1_is_identified_by is a string and not a resource

Handle cases when title is not in a resource but is a string

Trying again the sync publishing

Tring another response code

But I am not ready yet to change the return status code

trying to debug the mistry of missing exception logs

testing with a controller that logs the exception

Better close the Jena Model to ensure resources are released.

Check problems with rel registration