ConfirmEdit and QuestyCaptcha installed

From Fallen London Wiki

As you may have noticed, there was a spate of spam account creations earlier today.

In response, I've enabled ConfirmEdit and QuestyCaptcha for new account creations and adding new external links.

There are currently four questions in rotation ("which company created FL", "what does EPA stand for", and two questions about starting areas and main stats), though I'd appreciate ideas for more. Ideally, they would be questions whose answers are obvious to Fallen London players / wiki editors, but would be nontrivial for would-be spammers to guess or look up.