SSH public key authentication

#163 (closed) caused me some frustration, made worse by the fact that you can't have you messages open and log in at the same time.

I think a much more streamlines approach is that instead of giving you a password, a key is automatically added to your key ring, so you only need to enter the (short) username to log in.

Other than that I really enjoyed the game. I'm eagerly waiting for more missions and things to do. I'm not sure how linear/open world it will be, or how much puzzle/automation focused it'll be, but it'll be fun. It's like Kerbal Space Program, TS-100, and EVE Online all mixed together.

Actually, two things I'd love to see you steal from KSP are fast-forward and target position at next intercept.