[ODE] Wiki Spam

[Martijn]

Martijn wrote:
> There are plenty pages right now that show spam, though a few have been 
> rolled back in the past.

Sorry, that wasn't entirely correct. It appears to be mostly on the same 
pages and not as worse as it appeared.
We'll still want to get rid of it, will be much easier to keep track of 
changes without frequent rollbacks.

I think we should install ConfirmEdit and SpamBlacklist:

http://www.mediawiki.org/wiki/Extension:ConfirmEdit
http://www.mediawiki.org/wiki/Extension:SpamBlacklist

And in addition, block edits by unregistered users, unless someone 
objects to this. I've seen bots still beat the blacklist alone.

-Martijn