Use correct number of available channels

Appveyor: Switch to Stable 3.5

USe correct number of available channels

Switch to Stable 3.5

OfflineMaps: Fix tile set counts

Fix tile set counts in offline maps

Store correct tile set counts for image and elevation sets.

Update for Stable 3.5

QGCTextField: Fix crappy font rendering on Windows 

Allow custom fact json files for different vehicles

Use correct QT_TRANSLATE_NOOP to prevent crash

Fix crappy font rendering on Windows

Default ROI altitude to 0

Use correct QT_TRANSLATE_NOOP to prevent crash

Default ROI altitude to 0

Start joystick when JoystickEnabled changes

Fix default option for UDP NMEA Device

Plan-Waypoint: Show camera mode if plan contains it

Show camera mode if plan contains it

QGCMapPolygon: Preserve clockwise winding when adjusting vertices

Plan Load: Save camera shot count and complex distance in .plan file

Survey: Fix Survey additionalTimeDelay as it relates to hover and capture

Rework complex distance, camera shot count calc for better back compat

Save camera shots and complex distance in plan file so that values are valid when reloading

Should not rebuild transects for newer file formats where mission items are stored in file

Should not rebuild transects when loading. Mission items are already stored in file

Fix Survey additionalTimeDelay as it relates to hover and capture

Preserve clockwise winding when adjusting vertices

Relevant changes: fixes for u-blox F9P base station.

Expose Common (camera) Parameters

QGCExternalLibs: Test Qt version before adding AirMap

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