Fix Ronding Error in when using numeric Keyboard
Fix LKASSERT in Select Waypoint dialog when no Valid WayPoint.
Add MIDCENTER option for visual glide, to use also center line for positioning boxes
Do not use obstacle calculations for waypoints with an arrival altitude below 50m.
It would be inaccurate in any case, because terrain could be not accurate enough,
or most likely the waypoint declared altitude could be wrong, and the waypoint be BELOW terrain itself.
Or the waypoint position may be simply shifted by a few dozen meters from the real position, for example beyond the ridge.
We give yellow condition all the way, below 50m arrival!
Scale correctly VG windows, using correct screen range available
Merge branch 'Fix' of http://github.com/brunotl/LK8000
Prevent a problem with dual flarm feed into LK.
If two com ports are in use, and both of them are accessing the same data from flarm,
both of them will appear as FLARM unit, and this cannot be tolerated.
In such case, one or both ports will be disabled for FLAU messages, and no traffic will be used.
The RMZ will be used, though, correctly.
	modified:   LKFlarm.cpp
Update changes so far
This is version 3.1N
Advance to next 3.1o0