Rename RotaryEncoder to RotaryDecoder.
Auto switch to showing GS on EFIS, instead of Mach, when below threshold.
Fix infinite-loop in SoundManager.
TrimMixer and TrimControl modules.
Allow alternate configurable prop-outputs from the Joystick module.

Reconfigure system to use /controls path instead of /input.
Add trimming sound.
Add rudder trim.
Don't make sound when initializing trim.
Change NDB icons to simple points on HSI. Enable navaids loading.
Integrate untrimmed stick values in FBW.
Remove unnecessary Q_OBJECT from status_widget.h
Add VerticalTrim instrument.
Use QFontMetricsF instead of QFontMetrics.