Send IGC Track Log :
 fix possible crash and add some diagnostic in runtime.log
Add More diagnostic for "send IGC Track log"
Calculate wind using EKF when IAS is available.
Original code from John Wharington.
Remove unused WindKalman include.
Old windzigzag used when new wind not chosen as option.
Note that windzigzag was working only when IAS available, too.
Fix compiler warning in LKFlarm when OWN_TRACE undefined
Call zigzag from Heading only when IAS is available
Merge branch 'bt' of git://github.com/brunotl/LK8000 into ulli
Merge branch 'feature/Borgelt_fixes' of git://github.com/AlphaLima/LK8000 into ulli
Merge branch 'TaskEditorFix' of git://github.com/AlphaLima/LK8000 into ulli
Update credits
Set Wind values in Heading only. Do not use quality parameter for SetWindEstimate
Added "Line" sector type that allows to switch to the next waypoint when
crossing the bisector line between route legs.
Implemented switch for different sector types
Do not add a point to windzigzag during towing before start of freeflight.
(CC) Permanent WindKalman and old WindZigZag goes to Archive
(CC) Permanent options: PICTORIALS and all subsets WAYPOINT_ICONS WAYPOINT_QUICK_PICTO  MULTISEL_PICTORIALS BACKGROUND_PICTORIAL ASP_WARNING_PICTO
(CC) nonexistent option BEARING_INDICATOR removed
(CC) Permanent STORE_SCREENSETTINGS  for PC only
(CC) Permanent option SHOW_FOUND_WAYPOINT