Null pointer issue

the message handleAltitude

altitudeAMSL and altitudeRelative do not need divide 1000，the unit is meter and float format。 can you use _handleGlobalPositionInt message for altitudeAMSL and altitudeRelative？ because _handleGlobalPositionInt is default 5Hz and _handleAltitude is 1Hz.

Change battery.current to float with 2 decimal places

Fix most (all?) QML font rendering glitches on Windows

Handling proxies when fetching tiles.

Charting Tweaks

MAVLinkLogManager: disable automatic start of log streaming

It's not desired to have automatic log streaming for several reasons:
- There's already SD logging (which is the case for the majority of the
  users)
- The link does not provide the necessary bandwidth (eg. wireless telemetry)

Updated MAVLink logging to the new “flightreport" form upload.

Vehicle::sendMavCommand Incorrect setSingleShot

Correct message handling: GPS_RAW_INT, GLOBAL_POSITION_INT, VFR_HUD, ALTITUDE

* Some code moved to Vehicle

* Moved from UAS
* Remove unused code

Toolbar: Remove global property usage

Vehicle::sendMavCommand fixes

Add missing FlightDisplayViewVideo to qmldir

Adding a crash guard for when a command resend timeout occurs with an…

* Make MainToolbarIndicators reusable by other views
* Change to font based ratio sizing

Change Vehicle.Battery.current to Amps units

Update fence visibility flags

Mav command retry work