refs #865, further improved logging

* set log flag in hints, so no lock for each aircraft is needed
* as a result log functions have a bool log parameter now
* highlight situation and parts changed

src/blackmisc/aviation/aircraftengine.h

@@ -27,7 +27,6 @@ namespace BlackMisc
         class BLACKMISC_EXPORT CAircraftEngine : public CValueObject<CAircraftEngine>
         {
         public:
-
             //! Default constructor
             CAircraftEngine() {}