[TIMOB-9483] Android: focus event no longer fires for Window

Problem

There is a regression in Mobile SDK 2.1.0.v20120607180246 that causes the 'focus' event of Windows to not fire. Worded in 2.1.0.v20120520110234 Broken in 2.1.0.v20120607180246 *Expected Result*: console log should show {panel} == set simple event listeners successfully == open event == focus event {panel} *Actual Result*: console log shows only {panel} == set simple event listeners successfully == open event {panel}

Testcase

{panel:title=app.js}

var TheWindow=Ti.UI.createWindow({
                url:'win1.js',
                layout:'vertical',
                navBarHidden:false
              });
TheWindow.open();

{panel} {panel:title=win1.js}

var MainWin=Ti.UI.currentWindow;

function OnFocus()
{
  Ti.API.info('== focus event');
}

function OnOpen()
{
  Ti.API.info('== open event');
}

MainWin.addEventListener('focus',OnFocus);
MainWin.addEventListener('open',OnOpen);
Ti.API.info('== set simple event listeners successfully');

{panel}