-fixes #3756

Fixing a crash bug where a leaving vehicle was not being properly 

[APM] [Copter] Ch6 tune

Radio Cal: Fix reverse throttle check

Remove fading help text

Channel 6 Min Max

Channel 6 Tuning for APM Copter in tuning section

Remove Colon in Label

In Flight Tuning label

Log download: Correct ownership and deleteLater

Refresh params after airframe load

Power: Fix trigger list

Fix home position distance to 0.0

Center hdop in toolbar, fix goto enabled state handling

gps: update drivers submodule

PX4 add bitmask for param metadata

mavlink WIND_COV -> windFactGroup

Joystick: Fix button code

Fix percentRemainingAnnounce description

Adjust version query semantics

Remove speed change support from log replay

Disable CCCache