FlightGear - Flight Simulator FGAddon

Stereo sound file bug fixes for the superguppySGT.

This follows from http://thread.gmane.org/gmane.games.flightgear.devel/77932.
With the introduction of the 3D sound engine, all sound files in FlightGear now
must be mono point sources.

The following sound files have been converted directly to mono, by extracting
the left channel and overwriting the original file, as both stereo channels
contain identical information:
- Sounds/running.wav

Stereo sound file bug fixes for the harrier.

This follows from http://thread.gmane.org/gmane.games.flightgear.devel/77932.
With the introduction of the 3D sound engine, all sound files in FlightGear now
must be mono point sources.

The following original sound files have been preserved by renaming to
*-stereo.wav, as the information content in both stereo channels are similar but
non-identical, and mono versions created by extracting the left channel:
- Sound/guns.wav

Citation II:

Add <aircraft-class> to Livery xml's, to overwrite this value in
.fgfs/Aircraft/Citation.xml, as suggested by Edward:
http://sourceforge.net/p/flightgear/mailman/message/34277797/

Citation II:

change <aircraft-class> from "gate" to "ga" (General Aviation)

757-200: C-32A minor fixes to model xml

Increased compatibility Rembrandt. Update for FG 3.x

Citation II:

fix <aircraft-class> (bizjet -> gate) as documented here:
http://wiki.flightgear.org/Interactive_traffic#A_technical_perspective

Use correct case for liveries directory

Citation II:

fix Luxaviation livery's operator tag to conform to ICAO code: LXA

757-200: updated FDM configs; exterior lighting