Wire up the UI elements (QSpinBoxes) for ascend rates (4x) and descend rate
(1x) correctly so that the profile and calculation is updated immediately
after the value is changed (e.g. increased/decresed by 1) by clicking
the QSpinBox arrows.
Until now one had to click into the profile or change another planner
preference first before the change became effective.
Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>