message: Place size update event next to move event
diff: @@ -66,14 +66,14 @@ protected:
  */
  virtual void onMove(NAS2D::Vector<int> displacement) { mPositionChanged(displacement); }
  + virtual void onSizeChanged() { mResized(this); }
  +
  virtual void visibilityChanged(bool /*visible*/) {}
  virtual void enabledChanged() {}
  virtual void onFocusChanged() {}
  - virtual void onSizeChanged() { mResized(this); }
  -
  PositionChangedCallback mPositionChanged; /**< Callback fired whenever the position of the Control changes. */
  ResizeCallback mResized;
  