Communications computer update

You no longer need to have your ID in your hand to login. You no longer need to swipe your ID to change alert levels.

Cooldowns are now global per computer. The following things check and give cooldowns: Centcomm messages (5 minutes), alert level shifts (2 minutes), and global announcements (1 minute). All this is easily changeable. Calling/recalling the shuttle does NOT check/add cooldowns.

New computers get a cooldown of 5 minutes. Fix for #243. Better than my first fix, ignore those.

Added some extra checks to the Topic proc so it can't be spoofed.

Removed the proc for calling the prison shuttle since it was unused.

Changed the description to something less WIP and more descriptive of what the computer is for.