corrected help index for gear warning config
show split FAI sectors when transition between 28% to 25% rule

FAI indicator in Task Analysis and PAN
Task Overview with additional statistic line and revert button
Add customkey DspMode , accessing Display 3/3 page.
Changed DspMode buttons to automatically close menu after press.
Display a status message with current mode selected.
Merge branch 'TASK_OVERVIEW_REVERT' of https://github.com/AlphaLima/LK8000