[TIMOB-17440] Android: support setting properties to the tabgroup activity before tabgroup opens

   Titanium.UI.setBackgroundColor('#000');
   
   // create tab group
   var tabGroup = Titanium.UI.createTabGroup();
   
   var win1 = Titanium.UI.createWindow({
   	title : 'Tab 1',
   	backgroundColor : '#fff'
   });
   var tab1 = Titanium.UI.createTab({
   	icon : 'KS_nav_views.png',
   	title : 'Tab 1',
   	window : win1
   });
   
   var label1 = Titanium.UI.createLabel({
   	color : '#999',
   	text : 'Click to open window',
   	font : {
   		fontSize : 20,
   		fontFamily : 'Helvetica Neue'
   	},
   	textAlign : 'center',
   	width : 'auto'
   });
   
   function openWin() {
   	var childWin = Ti.UI.createWindow({});
   	childWin.addEventListener('open', function(){
   		Ti.API.info('childWin open event fired: childWin.activity = ' + childWin.activity);
   	});
   	childWin.activity.onCreateOptionsMenu = function(e) {
   		Ti.API.info('childWin onCreateOptionsMenu called');
   	};
   	childWin.activity.onStart = function() {
   		Ti.API.info('childWin onStart called');
   	};
   	childWin.activity.onRestart = function() {
   		Ti.API.info('childWin onRestart called');
   	};
   	childWin.activity.onCreate = function() {
   		Ti.API.info('childWin onCreate called');
   	};
   	childWin.activity.onResume = function() {
   		Ti.API.info('childWin onResume called');
   	};
   	childWin.activity.onPause = function() {
   		Ti.API.info('childWin onPause called');
   	};
   	childWin.activity.onStop = function() {
   		Ti.API.info('childWin onStop called');
   	};
   	childWin.activity.onDestroy = function() {
   		Ti.API.info('childWin onDestroy called');
   	};
   	childWin.open();
   }
   
   label1.addEventListener('click', openWin);
   win1.add(label1);
   
   var win2 = Titanium.UI.createWindow({
   	title : 'Tab 2',
   	backgroundColor : '#fff'
   });
   var tab2 = Titanium.UI.createTab({
   	icon : 'KS_nav_ui.png',
   	title : 'Tab 2',
   	window : win2
   });
   
   var label2 = Titanium.UI.createLabel({
   	color : '#999',
   	text : 'I am Window 2',
   	font : {
   		fontSize : 20,
   		fontFamily : 'Helvetica Neue'
   	},
   	textAlign : 'center',
   	width : 'auto'
   });
   
   win2.add(label2);
   
   tabGroup.addTab(tab1);
   tabGroup.addTab(tab2);
   
   tabGroup.addEventListener('open', function(){
   	Ti.API.info('tabGroup open event fired: tabGroup.activity = ' + tabGroup.activity);
   });
   tabGroup.activity.onCreateOptionsMenu = function(e) {
   	Ti.API.info('tabGroup onCreateOptionsMenu called');
   };
   tabGroup.activity.onStart = function() {
   	Ti.API.info('tabGroup onStart called');
   };
   tabGroup.activity.onRestart = function() {
   	Ti.API.info('tabGroup onRestart called');
   };
   tabGroup.activity.onCreate = function() {
   	Ti.API.info('tabGroup onCreate called');
   };
   tabGroup.activity.onResume = function() {
   	Ti.API.info('tabGroup onResume called');
   };
   tabGroup.activity.onPause = function() {
   	Ti.API.info('tabGroup onPause called');
   };
   tabGroup.activity.onStop = function() {
   	Ti.API.info('tabGroup onStop called');
   };
   tabGroup.activity.onDestroy = function() {
   	Ti.API.info('tabGroup onDestroy called');
   };
   
   tabGroup.open();