Time Gates Changes :
     - Make end time of last target configurable ( default value is 23:59 )
     - Remove time gates parameter from system configuration ( is saved with task )
Add Funtrek GM-132 (same as Funtrek GM-130)
fix : PG Optimize param is no saved if no task is configured !
Vector Airfield and Flarm Objects now independent of screen resolution

new white wings glider site symbol
little fine tuning for small displays
C-Probe Device, wrong absolute pressure calculated from GPS Altitude if baro alt is not provided by CProbe
Avoid drawing artefact if no bitmap.
trigger Task start "auto advances" only if "free flight" is detected.
Merge branch 'CloseTime' of http://github.com/brunotl/LK8000 into firstmerge
Merge branch 'white_wings' of http://github.com/AlphaLima/LK8000 into firstmerge
Merge branch 'C-Probe-pressure' of http://github.com/brunotl/LK8000 into firstmerge
Merge branch 'Draw' of http://github.com/brunotl/LK8000 into firstmerge
Merge branch 'freeflying' of http://github.com/brunotl/LK8000 into firstmerge