Merge pull request #1048 in BA/design from ~HUGH/design:release to release

* commit '58c327744504e75056e53400e722d6de02ac8e39':
  SLN-280 打印导出背景分离，漏删一行代码，导致导出按钮没显示出来。

designer/src/com/fr/design/report/ReportBackgroundPane.java

@@ -28,8 +28,6 @@ public class ReportBackgroundPane extends BasicPane {
         sourth.add(isExportBackgroundCheckBox);
         sourth.add(isPrintBackgroundCheckBox);
         this.add(sourth, BorderLayout.SOUTH);
-        
-        this.add(isPrintBackgroundCheckBox, BorderLayout.SOUTH);
     }
     
     @Override