Increase takeoff timeout and handle strobe differently

[István Váradi]

The current takeoff timeout of 40 seconds should be increased to 60.

However, if the user's aircraft has a strobe light and it is not turned on, the fault should be reported immediately when exceeding 50 knots.

[István Váradi <ivaradi@…>]

In 38d72269e87cd3b53c481fd9e2b0902f98e2c554:

Increased the takeoff timeout to 60 seconds (re #269)

[István Váradi <ivaradi@…>]

In bd36997f0b8aeadde1c84e5e69815dd6317dcafe:

Too high taxi speed is logged immediately if an aircraft has a strobe light, but it is not turned on when exceedin 50 knots (re #269)