Ticket 47866 - Errors after upgrading related to attribute "dnaremotebindmethod"
    
    Bug Description:  the dnaSharedConfig entries can contain "(null)" values
    
    Fix Description:   check if remoteBindDn and remoteConnProtocol are set, before
                       creating a vaue for teh entries.
                       NOTE: if these values aready have been created they have to be
                       deleted and the server restarted
    
    https://fedorahosted.org/389/ticket/47866
    
    Reviewed by: mark, thanks