Merge branch 'pull_upstream' into feature/offlineElevationData

libs/mavlink/include/mavlink/v2.0

src/Audio/AudioOutput.cc

src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml

src/FlightDisplay/FlightDisplayViewMap.qml

src/FlightMap/Widgets/MapFitFunctions.qml

src/Joystick/Joystick.cc

src/Joystick/Joystick.h

src/JsonHelper.cc

src/JsonHelper.h

src/MissionManager/MissionController.cc

src/MissionManager/MissionController.h

src/MissionManager/MissionManager.h

src/MissionManager/PlanMasterController.h

src/MissionManager/QGCMapPolygon.cc

src/MissionManager/QGCMapPolygon.h

src/MissionManager/QGCMapPolygonVisuals.qml

src/MissionManager/SimpleMissionItem.cc

src/MissionManager/SimpleMissionItem.h

src/MissionManager/SimpleMissionItemTest.cc

src/MissionManager/SimpleMissionItemTest.h