updated demo, can't stepFront

Demos/MovingConcaveDemo/ConcavePhysicsDemo.cpp

@@ -1473,10 +1473,11 @@ int main(int argc,char** argv)
 	ConcaveDemo* concaveDemo = new ConcaveDemo();
 	concaveDemo->initPhysics();
 	concaveDemo->setCameraDistance(30.f);
-	concaveDemo->stepFront();
-	concaveDemo->stepFront();
-	concaveDemo->stepFront();
-	concaveDemo->stepFront();
+//cannot run stepFront yet, the OpenGL context is not opened (stepFront updates camera...)
+//	concaveDemo->stepFront();
+//	concaveDemo->stepFront();
+//	concaveDemo->stepFront();
+//	concaveDemo->stepFront();
 
 	return glutmain(argc, argv,640,480,"Moving Concave Mesh Demo",concaveDemo);
 }

Demos/OpenGL/DemoApplication.cpp

@@ -44,7 +44,7 @@ m_dynamicsWorld(0),
 m_pickConstraint(0),
 	m_cameraDistance(15.0),
 	m_debugMode(0),
-	m_ele(0.f),
+	m_ele(20.f),
 	m_azi(0.f),
 	m_cameraPosition(0.f,0.f,0.f),
 	m_cameraTargetPosition(0.f,0.f,0.f),