rename ObsoleteDemos back to Demos

fix some relative path issues for loading assets

Demos/ConstraintDemo/main.cpp

@@ -0,0 +1,20 @@
+#include "ConstraintDemo.h"
+#include "GlutStuff.h"
+#include "GLDebugDrawer.h"
+
+#include "btBulletDynamicsCommon.h"
+
+int main(int argc,char** argv)
+{
+
+	
+
+    ConstraintDemo* constraintDemo = new ConstraintDemo();
+	
+
+    constraintDemo->initPhysics();
+	constraintDemo->setDebugMode(btIDebugDraw::DBG_DrawConstraints+btIDebugDraw::DBG_DrawConstraintLimits);
+	
+	return glutmain(argc, argv,640,480,"Constraint Demo. http://www.continuousphysics.com/Bullet/phpBB2/",constraintDemo);
+}
+