Fix blank PlanView due to bad connection

Fix Terrain profile crash

appSettingsSpeedUnitsString() method added

Fix crash

Fix missing missionItem property set

Transect style re factor

Use new Transect common controls

New Transect common controls

Fix QGCTabBar icon support

Common control for terrain follow

Common control for Pattern tab bar

Fix  incorrect supportsTerrain reference

Initial support for global plan-wide altitude mode setting

Initial support for global plan-wide altitude mode setting

LinkInterface/Vehicle uses mutexes to synchronize writing bytes

FirmwarePlugin::adjustOutgoingMavlinkMessageThreadSafe not required to be thread safe

Remove mutex from Vehicle::sendMessageOnLinkThreadSafe.

Use specifiesAltitude instead of specifiesCoordinate in correct places

Fix Android build

Fix Android build

LinkInterface and Vehicle uses mutexes to synchronize writing bytes to the link instead of queued signals

Get XCode Project build working again

Remove unused FlightGear stuff
More work
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Windows build updates
Linux fixes
Fix unit test run directory

CI Test Run

Fix min/max tests

Fix offline vehicle firmware/vehicle type settings

Fake change

Fix unit test run directory

Linux fixes