Fixed: VisiblePosition check for drivers fails
Changed && check in f_nametags line 178 to ||
Fixed comment to original intent (check for passengers, not units in driver position)
Fixed: GetPosATLVisual wouldn't display nametags for unit on water correctly
Added: F_shadow_nametags at default value 2

Pronounces the nametag better
Merge pull request #450 from Wolfenswan/dev-NameTagFix

F3 Nametag Fix for driver position