[TIMOB-10381] BlackBerry: zIndex bug for View

   var win = Ti.UI.createWindow({
   	backgroundColor: '#ccc'
   });
   
   var zIndex = 1;
   
   var v1 = Ti.UI.createView({
   	top: 10,
   	left: 10,
   	width: 100,
   	height: 100,
   	backgroundColor: 'green'
   });
   
   win.add(v1);
   
   var v2 = Ti.UI.createImageView({
   	top: 40,
   	left: 40,
   	width: 100,
   	height: 100,
   	backgroundColor: 'red'
   });
   
   win.add(v2);
   
   var v3 = Ti.UI.createView({
   	top: 60,
   	left: 60,
   	width: 100,
   	height: 100,
   	backgroundColor: 'yellow'
   });
   
   win.add(v3);
   
   v1.addEventListener('click', function(){
   	zIndex++;
   	v1.zIndex = zIndex;
   });
   
   v2.addEventListener('click', function(){
   	zIndex++;
   	v2.zIndex = zIndex;
   });
   
   v3.addEventListener('click', function(){
   	zIndex++;
   	v3.zIndex = zIndex;
   });
   
   win.open();