Inverse location issue with atmospheric refraction

In some condition the inverse location with atmospheric refraction gives an error.

For more details check the forum :

Inverse Location and INVLOC_MARGIN

changed milestone to %3.0

added Bug label

assigned to @gprat

changed the description

mentioned in commit e3adf730

mentioned in commit a1f78c0c

mentioned in merge request !3 (merged)

closed with commit a1f78c0c

closed with commit e3adf730