First demo [r001] file

Most features are present, but are either very basic or a bit buggy. The purpose of the demo is to get feedback from the basic game play. CONTROLS ##Flying## Left Arrow - Yaw anti-clockwise Right Arrow - Yaw clockwise Up Arrow - Throttle up Down Arrow - Throttle down ##Landing## Left Arrow - Pitch/Flaps up Right Arrow - Pitch/Flaps down Up Arrow - Throttle up Down Arrow - Throttle down