Ticket #71 - unable to delete managed entry config
Bug Description: Trying to delete a managed entry config entry using ldapmodify
resulted in an error 53 becuase the code did not handle delete
Fix Description: Just check for the delete operation, and skip to the end. The
Post op function handles the delete automatically since it reloads
the cache from the real config.
I also converted all the char dn's to Slapi_DN's