fixed region x,y scale bug.

cocos/2d/CCClippingRectangleNode.cpp

@@ -53,8 +53,8 @@ void ClippingRectangleNode::onBeforeVisitScissor()
         
         const Point pos = convertToWorldSpace(Point(_clippingRegion.origin.x, _clippingRegion.origin.y));
         GLView* glView = Director::getInstance()->getOpenGLView();
-        glView->setScissorInPoints(pos.x * scaleX,
-                                   pos.y * scaleY,
+        glView->setScissorInPoints(pos.x,
+                                   pos.y,
                                    _clippingRegion.size.width * scaleX,
                                    _clippingRegion.size.height * scaleY);
     }

cocos/2d/CCClippingRectangleNode.h

@@ -42,6 +42,7 @@ NS_CC_BEGIN
 /**
 @brief Clipping Rectangle Node.
 @details A node that clipped with specified rectangle.
+ The region of ClippingRectangleNode doesn't support any transform except scale.
 @js NA
 */
 class CC_DLL ClippingRectangleNode : public Node