[SAC] Spam in Wiki

[Hamish]

Frank wrote:
> I believe efforts to switch to using OSGeo LDAP for wiki
> ids has fallen down in the past trying to figure out how
> to map the existing ids.

while we're at it, https logins for the mediawiki would be nice,
especially if the LDAP password is considered to be used for
that in future.

fwiw, OSM has figured that one out for their mediawiki & we can
just ask them about it if we get stuck.


Hamish