Gives the AI a simple hud

And removes a bunch of verbs. Buttons on the hud are:

* Jump to core (covers two removed verbs because #4026)
* Camera list
* Track
* Camera light
* Crew monitor
* Crew manifest
* Alerts
* Announcement
* Call shuttle
* State laws
* Send message
* Show received messages
* Take picture
* Show pictures

That I have biasedly chose as the most used and gave some QUALITY icons.
http://i.imgur.com/q7skHm0.png
Here's how it looks like, CHECK OUT HOW EMPTY IS THE VERB WINDOW.

Oh, and also fixes a HORRIBLE BUG WHERE DEAD COULD COMMUNICATE WITH THE LIVING because dead AIs could toggle camera lights. I'm not even (completely) joking, people communicated by ~rotating chairs~...
isAI checks are to avoid :'s, and yeah, it would have probably made more sense to do
if (isHuman(usr))
var/human = usr
switch(name)

and so on, but this is beyond scope of this PR.