Drop Singleton for VatsinatorApplication,
VatsimDataHandler and SettingsManager classes
Remove AirportTracker and HomeLOcation classes
remove obsolete files
Merge branch 'misc/qt5' into ports/android

Conflicts:
	source/modules/airporttracker.cpp
	source/modules/modelmatcher.cpp
	source/storage/settingsmanager.cpp
	source/vatsimdata/vatsimdatahandler.cpp