Added support for flashing beta and developer versions of APM stack

Add MissionManager unit test

- fix bugs found by test
- Implemented Mock mission item protocol in

Mission item Unit Test

Show home position on flight map

Icon Tweaks

Add another Firmware detect fallback

Tweaking MapType and MapCenter icons
Added Zoom Plus/Minus icons to be used for maps
Added PiP icon for the upcoming Picture-in-Picture functionality

More Drop Button, Mission Editor, Map work

removed the default firmware type for ArduPilot

Add new DropButton control - WIP

Icons for Map Display

[WIP] appveyor windows builds

No widgets in mobile builds

Fixed QtLocation Caching

Home position manager

Updated Google Maps API Version
Updated User Agent used for map tile requests

Also:
- Remove unused code

Use import QGroundControl 1.0 to get to it

Take MissionManager off separate thread