The following issues were fixed
* Fixed wrong/missing namespaces
* Fixed obvious typos in documentation
* Documentation not in sync with source code
refs #544
* missing exports for new classes
* public non virtual convertToQString, propertyByIndex
* removed left-over of watchdog
* virtual destructor for avionicsbase.h
* added snapshot class
* added snapshot in analyzer, signal for new snapshot
* made all provider signals available in CSimulator
* added finders in CSimulatedAircraftList
* moved COwnAircraftProviderDummy into own file