1.31 Fix several "no pilot" bugs, by using the auto-pilot

[Rincewind79]

There are several bugs connected to a ship having no pilot. The game doesn't recognize this problematic status at all. For example I can issue any commands to an empty ship, but after doing so nothing happens. I can even send it for repairs and upgrades, but nothing happens, I can not even see the current status and that this ship has still something to do. I had to fly the ship manually to the dock and thankfully the already paid repairs and upgrades got done then.

This problem is very easy to fix: enable the auto-pilot for empty ships, like in X3. I mean we have autonomous vehicles right now, that you can order to your current position, without the need for a driver. In a couple of hundred years this should be standard.

Also a "pick me up" option, when in the spacesuit would be so helpful!