Recognize joystick hats and append to the button list (rev 2)

Fix bitmask editing

Allow disable of uncalibrated joystick

Single map type setting for all maps

- Offline maps new set defaults to default map type
- Plan/Fly views use MapScale control

Update README.md

Minor README tweaks. [ci skip]

Making tile cache description not mandatory.

Sensors small screen

Offline map small screen

Fix icons for iOS.

Restoring link change signal.

Camera: Small screen fixes

Safety: Small screen fixes

Flight Mode: Flow sections to available real estate

appveyor install gstreamer

Removing unused signal.

Radio: Small screen fixes

Update map URLs

Advanced Flight Mode: Small screen updates

Simple flight mode small screen

Remove unused code