Elite takeover to JS

@svornost god this one's a mess. It seems better now, cleaned up a bunch of typing.

Not quite sure this is the correct way to do it (a true event that uses the queue system that then goes into two consecutive passages) but it seems to work in testing. V.eliteLeft would be nice to drop.

I've left a todo for some content that was never seen in the TW. Basically, it relied on a temp gate. However, the gate was only set by a link, and that link never refreshed that section as far as I could tell.