1.8.0 (RC7)

GUI:
- put some more space between the "three error lines"
- moved the update button to the top

Fixed:
- Flight time in the GUI was shown only after takeoff. Now it's shown
directly after starting the flight

Added:
- on the 2nd try to send the flight results the client window shows up
to bring it to the user's attention

- when trying to start a flight and returned error message is "xxx is
not compatible with your rented xxx", then this message is cut and put
into all three of the error lines for better readability

Changed:
- XMIT -> Transmitting
- Line 1 and line 2 of the "flight has been logged" message has been
switched