* Harrier-GR3-set.xml (view[7]): new, rotate model view around the center of the aircraft.
* Models/Harrier-GR3.xml (front gear): revert my changes of r3599 to the rotation axis.
Do not pollute the property trees of remote aircraft over multiplayer.
* Models/Pilot/Pilot.xml: use /surface-positions/{elevator,rudder}-pos-norm to rotate the
pilot's head, too. Makes these rotations compatible with replays and multiplayer.
