Software needed

 * TextIndexNG3
 * PluggableAuthService which requires 
    - PluginRegistry
    - GenericSetup
 * ZPsycopgDA (/psycopg2)
    - example connection string: dbname= user= host=
    - encoding: UTF8
    - isolation level: Read commited
    In case of "psycopg version mismatch" see this patch:
        https://dndg.it/cgi-bin/gitweb.cgi?p=public/psycopg2.git;a=blobdiff;f=ZPsycopgDA/DA.py;h=526a21c995b9b95dc55d0b1714e00a67292ff334;hp=6b9d728e409fcd54bef5cae71692b0a5e1d4c5b5;hb=398b3781a59ff3c36f48eb2855e9243842e94ac8;hpb=98cbd51164ca5ea64398893399490191266df27e
 * Twisted

 * portallangs - root folder attribute