[cgdae]
* Sounds/Sound.xml: harrier-startup.wav was played every time one
switched to an external view. Also, remove the occurrences of
"<mode>once</mode>" which appeared to prevent turbine_start_in.wav
from being played in cockpit view if one restarted the engine.
[Ludovic Brenta]
* Models/Harrier-GR3.xml: after fortuitously discovering a pilot and
cockpit of a remote Harrier, undereground and some 10m in front of
the aircraft, remove the <usage>interior</usage> element of the
cockpit. This fixes.
