#6 cookie override for expanded menus

[Morten Wang]

If a submenu is set to be expanded by default it'll be
overridden by the cookie if the user has closed it,
which isn't a good solution. The submenu is expanded
by default because the author wants its contents to be
visible, there may be changes to the site or news.

Uploaded patch shows how to fix it, courtesy of Pablo
Roibal.

[Morten Wang]

Cookie-override patch