+ Fix for call of normalAt for edges
0001264: add function Sketch.setConstruction()
+ Show orientation dialog when creating an image plane
Raytracing: Added lux camera export function
Raytracing: Added function to write shapes as luxrender strings
Raytracing: Added function to rescale a luxrender matrix
Raytracing: Added Lux Feature
Raytracing: Added Luxrender project
Raytracing: Final cleanup of Luxrender stuff