FlightGear - Flight Simulator FGAddon

Arcus: various cleanup, fixes

F-86: correct sound reference; move previews to Previews directory to keep the main directory uncluttered.

Cessna 550 Citation II | 551 Citation II/SP | Citation II Sierra [4.4.3]

* initial hydraulic system
* new pushback dialog (pushback can turn the nose wheel more then the pilot with pedals)
* animated gear handle
* emergency gear down
* FDM updated for a better pushback

Note:
If you have extended the gears with emergency gear down, land and stop the airplane.
Go to the menue 'Citation-II'->'Citation II config' and hit 'Maintenance'.
This will reset the gear to normal.

Embraer ERJ 145 XR : Adding 3D instruments (Pedestal, overhead etc...)

Embraer ERJ 145 XR : Adding 3D instruments (Pedestal, overhead etc...)

Embraer ERJ 145 XR : Adding 3D instruments (Pedestal, overhead etc...)

Embraer ERJ 145 XR : Adding 3D instruments (Pedestal, overhead etc...)

PA28: add new livery by D-SVEN, cleanup

Cessna 550 Citation II | 551 Citation II/SP | Citation II Sierra [4.4.2]

* FDM updated
* Wings remodeled (correct profile)
* all assemblies (gears, ailerons, flaps, speedbrakes, nav-lights, static wicks) and animations on the wings are new
* all exterior lights uses now ALS
* new rotating beacon
* static wicks on the empennage
* all wheel assemblies updated
* cockpit windows reworked
* new clearshild to fit the new windows
* circuit-breaker panels reworked
* center pedestal reworked
* foul weather window can now opened
* all liveries updated

J3Cub: Fix stec55x texturing, light maps and power illumination