[TIMOB-4063] Android: TabGroup: most events not do not fire (only focus works)

Titanium.UI.setBackgroundColor('#000');

var tabGroup = Titanium.UI.createTabGroup();

var win1 = Titanium.UI.createWindow({  
    title:'Tab 1',
    backgroundColor:'#fff'
});
var tab1 = Titanium.UI.createTab({  
    title:'Tab 1',
    window:win1
});

var label1 = Titanium.UI.createLabel({
	color:'#999',
	text:'I am Window 1'
});

win1.add(label1);

var win2 = Titanium.UI.createWindow({  
    title:'Tab 2',
    backgroundColor:'#fff'
});
var tab2 = Titanium.UI.createTab({  
    title:'Tab 2',
    window:win2
});

var label2 = Titanium.UI.createLabel({
	color:'#999',
	text:'I am Window 2'
});

win2.add(label2);

tabGroup.addTab(tab1);  
tabGroup.addTab(tab2);  

tabGroup.open();

label1.addEventListener("click", function(){
  Ti.API.info("label1 click event fired!");
});

tabGroup.addEventListener("click", function(){
  Ti.API.info("tabGroup click event fired!");
});

tabGroup.addEventListener("dblclick", function(){
  Ti.API.info("tabGroup dblclick event fired!");
});

tabGroup.addEventListener("doubletap", function(){
  Ti.API.info("tabGroup doubletap event fired!");
});

tabGroup.addEventListener("focus", function(){
  Ti.API.info("tabGroup focus event fired!");
});
tabGroup.addEventListener("swipe", function(){
  Ti.API.info("tabGroup swipe event fired!");
});