Readd accidentally removed multikey setting
Fix *-set.xml for launcher-scanning
Cessna 140: minor fixes
Bergfalke: MP fix
ASK13: Cleanup, optimise for MP
ASG29: MP optimization
AlphaElectro: optimise MP
P51D, FDM: workaround for JSBSim castor wheel issue (Daniel Dubreuil)
P51D, FDM: increase critical AoA for aileron stall (Daniel Dubreuil)
P51D, checklists: takeoff, 'anticipate leftwards roll' (Daniel Dubreuil)
