fix to setLocalScaling for a btCylinderShape, thanks to rutina for the patch:

http://code.google.com/p/bullet/issues/detail?id=393

src/BulletCollision/CollisionShapes/btCylinderShape.h

@@ -100,6 +100,18 @@ public:
 		return getHalfExtentsWithMargin().getX();
 	}
 
+	virtual void	setLocalScaling(const btVector3& scaling)
+	{
+		btVector3 oldMargin(getMargin(),getMargin(),getMargin());
+		btVector3 implicitShapeDimensionsWithMargin = m_implicitShapeDimensions+oldMargin;
+		btVector3 unScaledImplicitShapeDimensionsWithMargin = implicitShapeDimensionsWithMargin / m_localScaling;
+
+		btConvexInternalShape::setLocalScaling(scaling);
+
+		m_implicitShapeDimensions = (unScaledImplicitShapeDimensionsWithMargin * m_localScaling) - oldMargin;
+
+	}
+
 	//debugging
 	virtual const char*	getName()const
 	{