[TIMOB-7965] iOS: canGoBack/canGoForward does not work for local files

   function view() {
   	return this.webView;
   }
   
   // FirstView Component Constructor
   function FirstView(parent) {
   	//create object instance, a parasitic subclass of Observable
   	var self = this;
   	self.parent = parent;
   	
   	self.webView = Ti.UI.createWebView({
           left: 5,    
           top: 45, 
           right: 5,
           bottom: 5,
           url : '/HTML/index.html'
       });
       self.parent.add(self.webView);
   
   	var count = 0;
       self.webView.addEventListener('load', function (e) {
          alert('goback: ' + self.webView.canGoBack() + ' gofwd: ' + self.webView.canGoForward());
       });
   
   	self.back = Ti.UI.createButton({
           left: 5,    
           top: 5, 
           width: 100,
           height: 30,
   		title: 'Back' 
   	});
   	self.parent.add(self.back);
   	self.back.addEventListener('click',function(e) {
   	   self.webView.goBack();
   	});
   	
   	self.forward = Ti.UI.createButton({
           top: 5, 
           right: 5,
   		width: 100,
           height: 30,
   		title: 'Forward' 
   	});
   	self.parent.add(self.forward);
   	self.forward.addEventListener('click',function(e) {
   	   self.webView.goForward();
   	});
       
   	return self;
   }
   
   FirstView.prototype.view = view;
   module.exports = FirstView;