Small documentation fix for UI.createMenu.
Small documentation fix for UI.createMenu.

appcelerator/titanium_desktop,jvkops/titanium_desktop,wyrover/titanium_desktop,wyrover/titanium_desktop,jvkops/titanium_desktop,wyrover/titanium_desktop,jvkops/titanium_desktop,appcelerator/titanium_desktop,appcelerator/titanium_desktop,jvkops/titanium_desktop,appcelerator/titanium_desktop,jvkops/titanium_desktop,wyrover/titanium_desktop,appcelerator/titanium_desktop,wyrover/titanium_desktop,wyrover/titanium_desktop,jvkops/titanium_desktop