Joystick (windows only) in away3d demo, better camera handling

Joystick ANE from http://alexomara.com/?p=blog&post=7

Added setup for Oculus tracker in the SpaceShip, once the Win support is there it should just start working :-)

Improved keyboard controls (arrows and +,- for speed)
added a wireframe box depicting the ship you'll be in.

Tried to adhere to 1 unit = 1 meter, earth is only 12 km wide now :-)
Away3d goes nuts when the far and near of the lens is even further apart
then they are now. 
Suggestions on how to deal with this? key to VR is realistic measurements.

The Air folder in the demo contains a standalone demo, try with a
joystick (tested with a logitech Extreme 3D pro) my Xbox controller did not work.
![screen](https://f.cloud.github.com/assets/4362266/608515/12e97b5c-cd61-11e2-852a-62f5fe99ad9a.jpg)