Specifies a username of a user (or, if openid is enabled, an openid)
who has the powers of a wiki admin. Currently allows locking of any page,
- and banning of users; other powers may be added later. May be specified
- multiple times for multiple admins.
+ and [[banning|banned_users]] users; other powers may be added later.
+ May be specified multiple times for multiple admins.
For an openid user specify the full URL of the login, including "http://".