When entering a duplicate VOR or NDB id into the Location-in-Air
dialog, the first entry in the database was picked. This patch
assumes that the station with the given ID nearest to the current
position was requested.
A better fix would probably be to present the user a list of found
stations - that's something for the future.
Setting a parking position (e.g. by default via command-line) caused
"Position aircraft in air" to not work as expected. The "parkpos" property
must be reset, otherwise heading/glidepath/azimuth do not have any effect
when repositioning.
Make a new set location (on ground) dialog box which knows how to set up
the /sim/presets/ properties correctly for a new ground position.
For now leave the previous all-in-one dialog box for in-air resets. However
this really needs some more work to make sure the /sim/presets properties get
set correctly.
