hg: openjfx/8/controls/rt: RT-32815 NPE when removing item from detached Menu

[hang.vo at oracle.com]

Changeset: 7da89c6ed88e
Author:    psomashe
Date:      2013-09-12 15:03 -0700
URL:       http://hg.openjdk.java.net/openjfx/8/controls/rt/rev/7da89c6ed88e

RT-32815 NPE when removing item from detached Menu
reviewed Tom Schindl's patch to the bug report and added unit test.

! modules/controls/src/main/java/com/sun/javafx/scene/control/skin/MenuButtonSkinBase.java
! modules/controls/src/test/java/javafx/scene/control/MenuBarTest.java