Ticket #47895 - If no effective ciphers are available, disable security setting.
    
    Description: If nsslapd-security is "on" and nsSSL3Ciphers is given
    AND none of the ciphers are available or some syntax error is detected,
    the server sets nsslapd-security "off" and starts up.
    
    https://fedorahosted.org/389/ticket/47895
    
    Reviewed by nkinder@redhat.com (Thank you, Nathan!!)