Switched MSL with AGL, Tweaked Vario decay/attack, Added wind widget w/ m/s units.

Signed-off-by: Stephen Carlson <stephen_carlson@byu.edu>
Glide Ratio, tweaked Vario thresholds, speeds as %4.1f, airspeed "tape" for best L/D

Signed-off-by: Stephen Carlson <stephen_carlson@byu.edu>
Slight change to glide slope estimation.

Signed-off-by: Stephen Carlson <stephen_carlson@byu.edu>
Merge branch 'master' of https://github.com/StephenCarlson/MinimOSD-Extra