Bug report 0.20 update

[Ulrich Kröpke]

Added launch button and time to impact.

Time to impact is wrong.
1.400 m = 1:31
1.450 m = 2:33
1.800 m = 2:57
1.850 m = 2:01
2.350 m = 2:32
2.400 m = 3:35
2.750 m = 3:56
2.800 m = 3:04 and so on.

And please make the curser at the recognition manuel a bit darker. By now it is very hard to see the curser and that takes a lot of time till you find the right ship.