Restored FirmwareUpgrade.qml as it was beyond repair. Also fixed some issues that were present in the original, master version.
Added "hasAPMSupport" to QGroundControl global control. This is to determine if APM support is enabled or not.

When the item is not visible, the width and height are not valid,
resulting in wrong output values
Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Fixed places where the font family was not being defined (therefore using the default system font)

Save/Restore stream rates. Auto flight mode support

Use regular sliders

PID Tuning rate adjustment

Turn on live updating for vehicle facts used in PID charts

Make ToolStrip font smaller (Desktop builds)
Check for auto configured video stream before testing video source type

ArduCopter PID tuning support

Fix overall Palette Window UI

Export color palette in formats that can be directly used by QGC and custom plugins (in addition to the original Json)
Tweak palette export UI

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Restore QGC to its normal UI layout (buttons on toolbar)

Show extra unit in small font

Reduce space between graphic and text

Add support for ArduRover MockLink

Windows fixes

Fixed flight widget position.

Get rid of QGCView, QGCViewPanel and FactPanel. All messages and dialogs are now handled in the root window.

ArduPilot for configurable mavlink stream rates