Active Keyboard for waypoint selection
Active Keyboard Header corrected
Active Keyboard, remove all key not leading into a valid waypoint name
removed german Ü,Ö,Ä keys
Active keyboard with partial string search
Active keyboard and partial string search after the second character (number is adjustable by GC_SUB_STRING_THRESHOLD in Dialogs.h)
fixed showing waypoint names in numerical keyboard
removed Debug output
active keyboard starting fro first character
Merge branch 'ACTIVE_KEYBOARD' of http://github.com/AlphaLima/LK8000 into ulli