[9] Review request for 8158566 Provide a Swing property to not close toggle menu items on mouse click

[Alexandr Scherbatiy]

Hello,
Could you review the fix:
  bug: https://bugs.openjdk.java.net/browse/JDK-8158566
  webrev: http://cr.openjdk.java.net/~alexsch/8158566/webrev.00

  The proposed "RadioButtonMenuItem.closeOnMouseClick" and 
"CheckBoxMenuItem.closeOnMouseClick" properties allows to control 
JRadioButtonMenuItem and JCheckBoxMenuItem closing on mouse click.

 Thanks,
 Alexandr.