fixed bug in nuiNavigationController
fixed bug in nuiNavigationController

libnui/nui3,UIKit0/nui3,libnui/nui3,UIKit0/nui3,UIKit0/nui3,libnui/nui3,UIKit0/nui3,libnui/nui3,UIKit0/nui3,UIKit0/nui3,UIKit0/nui3,libnui/nui3,libnui/nui3