Renamed setup to setup-ds-dsgw to be consistent with other setup scripts
    setup-ds-dsgw will attempt to use settings from pre-configured admin server
    and directory server
    Config files will use an ldap url and http url - this is so that we can use
    http or https and ldap or ldaps - previously, dsgw was configured during
    regular DS setup, which did not allow TLS/SSL setup - we must be able to
    configure the dsgw for TLS/SSL during setup now
    Changed XP_GetClientStr back to just always return a malloc'd string - there
    are cases where we cannot use a static
    There were some places where we were using a form with POST + a query string
    Use SERVER_NAME instead of HTTP_HOST because the latter has the port number
    already in it