* Random number generation was faulty, as we have to use RAND_MAX and not INT_MAX
* fixed CTestAircraftSituation::testSetRotateUpPitch, we need to use a defined front function otherwise it can be randomly outside range
* adjusted performance unit test a bit, as the value vary a lot
Ref T261
* min/max ground distance, also added in situation list
* use model's vtol/CG info
* improved scenery deviation guessing
* adjusted interpolator scenery deviation handling