http://zone.spip.org/trac/spip/changeset/13904
Webmasters are not necessarily geeks, so a decent interface has been
created to manage their status.
Webmaster is a field added to the table spip_auteurs and is 'oui'
(yes) or 'non' (no). To be considered as a webmaster, an admin (status
'Ominirezo') must also have this field to 'yes'.
In the upgrade, if _ID_WEBMESTRES is defined, the concerned authors
benefit of webmasters status, otherwise only the author who made the
upgrade is promoted as webmaster.
It is possible to promote a webmaster by installing the site again
(just delete the file connect.php).
A webmaster can promote or downgrade another webmaster. A normal admin
can not change the status of a webmaster.
.Gilles