rename ObsoleteDemos back to Demos

fix some relative path issues for loading assets

Demos/Raytracer/main.cpp

@@ -0,0 +1,16 @@
+
+#include "Raytracer.h"
+#include "GlutStuff.h"
+
+
+int main(int argc,char** argv)
+{
+        Raytracer* raytraceDemo = new Raytracer();
+
+        raytraceDemo->initPhysics();
+        
+        raytraceDemo->setCameraDistance(6.f);
+		
+        return glutmain(argc, argv,640,640,"Bullet GJK Implicit Shape Raytracer Demo",raytraceDemo);
+}
+