Move PreflightCheckList to custom builds only. The model, which used to be implemented within BuiltinPreFlightCheckModel is now within the control itself. It is up to the implementer to define a proper model.

Stable merge

Update OSX SDL2.Framework to 2.09

Mavlink protocol version negotiation fixes

Update SDL2.Framework to 2.09

Fix combo box height

Remove old code and fix typo

ArduCopter Heli: Support 8 servos

Replace usage of QMessageBox with a QML window.

Initial support for PX4 Rover

Moved the preflight checklist to a proper, modal dialog.

Fix height

Change Survey-In min accuracy

Support 8 servos

Change Survey-In min accuracy

Windows: Change USB driver detection logic

Change USB driver detection logic

Revert "Windows: Always install PX4 Drivers"

Firmware Flash: Fix crash caused by NULL vehicle

Instead of trying to keep a vehicle type within the FirmwarePlugin instance, pass the vehicle to the function so it can query the type that way.

Windows: Always install PX4 Drivers

Always install PX4 Drivers

Fix crash caused by NULL vehicle

Crash and typo fixes