Merging in latest from upstream (ST/design:refs/heads/feature/9.0)

* commit 'c93bcf7433621e00baa948b6ab929b7ce5a40cf1':
  REPORT-5508 9.0设计器属性面板按钮控件都没有描边，需要加上。详见问题链接
  图片

designer_base/src/com/fr/design/gui/ibutton/UIButtonGroup.java

@@ -222,7 +222,7 @@ public class UIButtonGroup<T> extends JPanel implements GlobalNameObserver {
     }
 
     protected LayoutManager getGridLayout(int number) {
-        return new GridLayout(0, number, 1, 0);
+        return new GridLayout(0, number, 0, 0);
     }
 
     /**