Ticket 48213 - Admin server registration requires anonymous binds
    
    Bug Description:  When installing a local DS/AS and registering the
                      server with a remote admin server, the setup process
                      does an anonymous bind to start things off, regardless
                      if a full DN was provided as the admin id.  If
                      anonymous access is disabled on the remote
                      configuration DS then the registration process fails.
    
    Fix Description:  If a DN was provided, not an rdn value, then attempt to
                      bind with this user first.  Only if an rdn value is
                      provided will an anonymous bind be performed.
    
    https://fedorahosted.org/389/ticket/48213
    
    Reviewed by: nhosoi(Thanks!)