[TIMOB-15885] iOS: Memory leak on iOS ListView when template contains event listener

   	button.addEventListener('click', function(evt) {
   		win.close();
   		win.remove(listView);
   		listView = null;
   		win.remove(button);
   		button = null;
   		win = null;
   	});
   

   	            events: {
   	            	'click': function(evt) {
   	            		var item = evt.section.getItemAt(evt.itemIndex);
   	            		item.info.text = 'Clicked';
   	            		evt.section.updateItemAt(evt.itemIndex, item);
   	            	}
   

   var baseWin = Ti.UI.createWindow({backgroundColor: 'red'});
   
   var b = Ti.UI.createButton({
   	title: 'Click',
   	color: 'red',
   	selectedColor: 'blue',
   	height: '100dp',
   	width: '150dp',
   	backgroundImage: 'appicon.png',
   	backgroundColor: 'green',
   	style: Titanium.UI.iPhone ? Titanium.UI.iPhone.SystemButtonStyle.PLAIN : 0 
   });
   
   
   b.addEventListener('click', function(evt) {
   
   	var win = Ti.UI.createWindow({backgroundColor: 'white'});
   	
   	var clickCallback = function(evt) {
   		var item = evt.section.getItemAt(evt.itemIndex);
   		item.info.text = 'Clicked';
   		evt.section.updateItemAt(evt.itemIndex, item);		
   	};
   
   	
   	// Create a custom template that displays an image on the left, 
   	// then a title next to it with a subtitle below it.
   	var myTemplate = {
   	    childTemplates: [
   	        {                            // Title 
   	            type: 'Ti.UI.Label',     // Use a label for the title 
   	            bindId: 'info',          // Maps to a custom info property of the item data
   	            properties: {            // Sets the label properties
   	                color: 'black',
   	                font: { fontFamily:'Arial', fontSize: '20dp', fontWeight:'bold' },
   	                left: '60dp', top: 0,
   	            },
   	            events: {
   	            	'click': clickCallback
   	            }
   	        },
   	        {                            // Subtitle
   	            type: 'Ti.UI.Label',     // Use a label for the subtitle
   	            bindId: 'es_info',       // Maps to a custom es_info property of the item data
   	            properties: {            // Sets the label properties
   	                color: 'gray',
   	                font: { fontFamily:'Arial', fontSize: '14dp' },
   	                left: '60dp', top: '25dp',
   	            }
   	        }
   	    ]
   	};
   	
   	var listView = Ti.UI.createListView({
   	    // Maps myTemplate dictionary to 'template' string
   	    templates: { 'template': myTemplate },
   	    // Use 'template', that is, the myTemplate dict created earlier
   	    // for all items as long as the template property is not defined for an item.
   	    defaultItemTemplate: 'template'
   	});
   	var sections = [];
   	
   	var fruitSection = Ti.UI.createListSection({ headerTitle: 'Fruits / Frutas'});
   	var fruitDataSet = [
   	    // the text property of info maps to the text property of the title label
   	    // the text property of es_info maps to text property of the subtitle label
   	    // the image property of pic maps to the image property of the image view
   	    { info: {text: 'Apple'}, es_info: {text: 'Manzana'}, pic: {image: 'apple.png'}},
   	    { info: {text: 'Banana'}, es_info: {text: 'Banana'}, pic: {image: 'banana.png'}}
   	];
   	fruitSection.setItems(fruitDataSet);
   	sections.push(fruitSection);
   	
   	var vegSection = Ti.UI.createListSection({ headerTitle: 'Vegetables / Verduras'});
   	var vegDataSet = [
   	    { info: {text: 'Carrot'}, es_info: {text: 'Zanahoria'}, pic: {image: 'carrot.png'}},
   	    { info: {text: 'Potato'}, es_info: {text: 'Patata'}, pic: {image: 'potato.png'}}
   	];
   	vegSection.setItems(vegDataSet);
   	sections.push(vegSection);
   
   	listView.setSections(sections);
   	
   	var button = Ti.UI.createButton({
   		title: 'Close Window',
   		color: 'black',
   		height: '100dp',
   		width: '150dp',
   		backgroundColor: 'green',
   	});
   	
   	button.addEventListener('click', function(evt) {
           win.close();
           myTemplate.childTemplates[0].events.click = null;
   		clickCallback = null;
           win.remove(listView);
           listView = null;
           win.remove(button);
           button = null;
           win = null;
   	});	
   	
   	win.add(listView);
   	win.add(button);
   	win.open();
   	
   });
   
   baseWin.add(b);
   baseWin.open();