This reverts commit 233a1716.

Impl. Lorenz suggestions wrt one velocityChanged, altitudeChanged, speedChanged signal per reference frame. Impl. CDI on compass disk.

Fix for crash involving serial links not being removed from QGCToolBar

More vehicle config

Waypoint and compile fix

Fix for static const float cannot be initialized within a class definition, and other windows compile errors.

Fix for bug where displaying WaypointList after adding offline waypoints resulted in an empty waypoint list, until the next waypoint was manually added

Merge Lorenz. Fixed wrong roll direction on PFD. PFD battery meter live. PFD pitch scale bars narrow towards +- 90 deg

Removed extraneous debug statement that just cluttered the console. Hard to debug anything else with this active.

Set most UI to disabled by default with it only enabled on the addition of an active UAS. Added all missing parameter control buttons to the Vehicle Config widget.

Small code cleanup. If statement was removed because at this point 'mav' has already been assumed to be non-null for a while.

Fixed some display of parameters where no vehicle-specific config is specified

Fixed setting the slider position based on parameter values for variables that don't have a range specified.