[8u40] Review Request: (RT-38138) -fx-spacing used wrong in .menubar in modena.css

[David Grieve]

Jonathan,

Please review https://javafx-jira.kenai.com/browse/RT-38138. There are 
two patches attached. The first just addresses the problem in modena.css 
(and caspian.css). The second addresses the problem in MenuBarSkin and 
leaves modena.css (and caspian.css) unmodified. It is the second patch 
(RT-38138_01.patch) that I recommend we move forward with as it keeps 
styling MenuBar and ToolBar very much the same.

After your review, I'll seek a +1 from Kevin or Steve.