Fix Issue 680, compilation error using Visual Studio 2005, service pack 1, quicksort compare function needs to be in a class.

Toggle between GJK and SAT (initializePolyhedralFeatures) in convexDecomposition at easch restart of the demo (spacebar)

Demos/ConvexDecompositionDemo/main.cpp

@@ -6,7 +6,6 @@
 #include "btBulletDynamicsCommon.h"
 
 
-GLDebugDrawer	gDebugDrawer;
 
 int main(int argc,char** argv)
 {
@@ -17,13 +16,9 @@ int main(int argc,char** argv)
 
         convexDecompDemo->initPhysics(filename);
 
-		convexDecompDemo->getDynamicsWorld()->setDebugDrawer(&gDebugDrawer);
+		
 
 
-        convexDecompDemo->clientResetScene();
-
-       
-
         glutmain(argc, argv,640,480,"Bullet Physics Demo. http://www.continuousphysics.com/Bullet/phpBB2/",convexDecompDemo);
 
 	delete convexDecompDemo;