Zoom buttons move to MapScale control

Toggle Rally Point insertion on/off.
Highlight current Rally Point and current Waypoint.
Use tab bar instead of a row of radio buttons for selection (Mission, Fence, Rally).
Fix QGCHoverButton to handle proper checked state toggle.
Get rid of the many arrays used to define behaviors for the ToolStrip. They are now all defined within its model.
Fixed color for disabled text within ToolStrip (it was invisible)

Update all files that use a QML Menu item to QtQuick.Controls 2.4 to solve the issue of a menu showing up in random places on Android.

Switch to clearer property usage

Fix Menu crash caused by parenting

Clip PIP window so when video is set to fit width, the hight is clipped
Remove ExclusiveGroup from CameraCalc radio buttons
Remove ExclusiveGroup from FWLandingPatternEditor radio buttons
Set main window minimum width and height

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

Fix QML warnings

Add support for geofence return point. Also fixed a bunch of bugs in geofence and rally point support.

Pattern Preset support

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

Use consistent Altitude Mode labeling

Use standard Altitude Mode labeling

No camera commands for ArduPilot

Fixed flight widget position.

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

Fix capatilization

More work on Structure Scan rewrite

Bug fixes for Structure Scan. Also includes support for Entrance/Exit Alt.

Add support for Start From Top/Bottom, plus more helpful stats

Waypoints only mode tweaks