[TIMOB-9487] Android: KS: tab focus event keeps being fired

   Titanium.UI.backgroundColor = "#ff0";
   
   var tabGroup = Ti.UI.createTabGroup({
     backgroundColor: "#0f0",
     left: 10,
     right: 10,
     top: 10,
     bottom: 10
   });
   tabGroup.addEventListener('open', function(e) {Ti.API.info('open tabGroup, source ' + e.source);});
   tabGroup.addEventListener('close',  function(e) {Ti.API.info('close tabGroup, source ' + e.source);});
   tabGroup.addEventListener('focus', function(e) {Ti.API.info('focus tabGroup, source ' + e.source);});
   tabGroup.addEventListener('blur',  function(e) {Ti.API.info('blur tabGroup, source ' + e.source);});
   
   var win1 = Ti.UI.createWindow({
     //title : 'Window 1',
     backgroundColor : '#f0f',
     left: 10,
     right: 10,
     top: 10,
     bottom: 10,
     layout: "vertical"
   });
   win1.addEventListener('open', function(e) {Ti.API.info('open win1, source ' + e.source);});
   win1.addEventListener('close',  function(e) {Ti.API.info('close win1, source ' + e.source);});
   win1.addEventListener('focus', function(e) {Ti.API.info('focus win1, source ' + e.source);});
   win1.addEventListener('blur',  function(e) {Ti.API.info('blur win1, source ' + e.source);});
   
   var dummytf = Ti.UI.createTextField({
     top: 5,
     left: 5,
     right: 5,
   //	height: 20,
     borderStyle: Ti.UI.INPUT_BORDERSTYLE_ROUNDED
   });
   win1.add(dummytf);
   
   var tf = Ti.UI.createTextField({
     top: 5,
     left: 5,
     right: 5,
   //	height: 20,
     borderStyle: Ti.UI.INPUT_BORDERSTYLE_ROUNDED
   });
   win1.add(tf);
   tf.addEventListener('focus', function(e) {Ti.API.info('focus tf, source ' + e.source);});
   tf.addEventListener('blur',  function(e) {Ti.API.info('blur tf, source ' + e.source);});
   
   var button1 = Ti.UI.createButton({
     title: "open",
     top: 10
   });
   button1.addEventListener("click", function() {
     var win5 = Ti.UI.createWindow({  
         backgroundColor:'#ff0'
     });
     var button2 = Ti.UI.createButton({
       title: "close"
     });
     button2.addEventListener("click", function() {
       win5.close();
     });
     win5.add(button2);
     win5.addEventListener("open", function() {
       Ti.API.log("win5 open");
     });
     win5.addEventListener("close", function() {
       Ti.API.log("win5 close");
     });
     win5.addEventListener("focus", function() {
       Ti.API.log("win5 focus");
     });
     win5.addEventListener("blur", function() {
       Ti.API.log("win5 blur");
     });
     win5.open({
       navBarHidden: true
     });
   });
   win1.add(button1);
   
   var tab1 = Ti.UI.createTab({
     icon: 'KS_nav_views.png',
     title: 'Tab 1',
     window: win1
   });
   tab1.addEventListener('open', function(e) {Ti.API.info('open tab1, source ' + e.source);});
   tab1.addEventListener('close',  function(e) {Ti.API.info('close tab1, source ' + e.source);});
   tab1.addEventListener('focus', function(e) {Ti.API.info('focus tab1, source ' + e.source);});
   tab1.addEventListener('blur',  function(e) {Ti.API.info('blur tab1, source ' + e.source);});
   
   var win2 = Ti.UI.createWindow({
     title: 'Window 2',
     backgroundColor: '#fff',
     layout: 'vertical'
   });
   win2.addEventListener('open', function(e) {Ti.API.info('open win2, source ' + e.source);});
   win2.addEventListener('close',  function(e) {Ti.API.info('close win2, source ' + e.source);});
   win2.addEventListener('focus', function(e) {Ti.API.info('focus win2, source ' + e.source);});
   win2.addEventListener('blur',  function(e) {Ti.API.info('blur win2, source ' + e.source);});
   
   var tab2 = Ti.UI.createTab({
     icon: 'KS_nav_ui.png',
     title: 'Tab 2',
     window: win2
   });
   tab2.addEventListener('open', function(e) {Ti.API.info('open tab2, source ' + e.source);});
   tab2.addEventListener('close',  function(e) {Ti.API.info('close tab2, source ' + e.source);});
   tab2.addEventListener('focus', function(e) {Ti.API.info('focus tab2, source ' + e.source);});
   tab2.addEventListener('blur',  function(e) {Ti.API.info('blur tab2, source ' + e.source);});
   
   var win3 = Ti.UI.createWindow({
     title: 'Window 3',
     backgroundColor: '#68a'
   });
   win3.addEventListener('open', function(e) {Ti.API.info('open win3, source ' + e.source);});
   win3.addEventListener('close',  function(e) {Ti.API.info('close win3, source ' + e.source);});
   win3.addEventListener('focus', function(e) {Ti.API.info('focus win3, source ' + e.source);});
   win3.addEventListener('blur',  function(e) {Ti.API.info('blur win3, source ' + e.source);});
   
   var button = Ti.UI.createButton({
     title: 'tab.open(win3)',
     top: 40,
     width: 200,
     height: 40,
     left: 50
   })
   button.addEventListener('click', function(e) {
     tab2.open(win3);
   });
   win2.add(button);
   
   tabGroup.addTab(tab1);  
   tabGroup.addTab(tab2); 
   tabGroup.open();
   

   android
   =======
   - launch app
     - win1->open
     - win1->focus
     - tab1->focus
     - tabGroup->focus
     - tabGroup->open
   - click "open" button
     - win1->blur
     - win5->open
     - win5->focus
   - click "close" button
     - win5->close
     - win5->blur
     - win1->focus
   - switch from tab1 to tab2
     - win1->blur
     - win2->open
     - win2->focus
     - tab1->blur
     - tabGroup->blur
     - tab2->focus
     - tabGroup->focus
   - switch from tab2 to tab1
     - win2->blur
     - win1->focus
     - tab2->blur
     - tabGroup->blur
     - tab1->focus
     - tabGroup->focus
   - switch from tab1 to tab 2 again
     - win1->blur
     - win2->focus
     - tab1->blur
     - tabGroup->blur
     - tab2->focus
     - tabGroup->focus
   - click "tab.open()" button
     - win2->blur
     - win3->open
     - win3->focus
   - hit back button to close activity window
     - win3->close
     - win3->blur
     - win2->focus