When on Joystick config page:
- Not calibrating: If joystick is enabled, joystick messages should
continue to go to vehicle

- MultiVehicleManager is a Qml friendly replacement for UASManager
- Vehicle is a replacement for both UAS and AutoPilotPlugin

Usability plus, new features:
- 3DR Radio support
- APM Stack support

to the clearer, standard versions of the AWS links.

Everything is now based off of default font pixel size

If Facts are referenced from FactPanelController, we need to reference
count the AutoPilotPlugin such that it doesn’t get destroyed until
after the FactPanelController is destroyed.