[AC-1757] Unable to add item to the actionbar with tabGroup

   var self = Ti.UI.createTabGroup({
   	fullscreen : true,
   	title : 'Action Bar'
   });
    
   var win1 = Ti.UI.createWindow({
   	title : 'win1'
   });
   
   var tab1 = Ti.UI.createTab({
   	title : 'tab1',
   	window : win1
   });
   
   var win2 = Ti.UI.createWindow({
   	title : 'win1'
   });
   
   var tab2 = Ti.UI.createTab({
   	title : 'tab2',
   	window : win2
   });
   
   self.addTab(tab1);
   self.addTab(tab2);
   
   self.open();
   
   self.addEventListener('open', function(e) {
   	var activity = self.getActivity();
   
   	activity.onCreateOptionsMenu = function(e) {
   		var menu = e.menu;
   
   		// Menu Item 1
   		var menuItem1 = menu.add({
   			title : "Item 1",
   			icon : "images/action_about.png",
   			showAsAction : Ti.Android.SHOW_AS_ACTION_ALWAYS
   		});
   		menuItem1.addEventListener("click", function(e) {
   			alert("I was clicked 1");
   		});
   
   		// Menu Item 2
   		var menuItem2 = menu.add({
   			title : "Item 2",
   			icon : "images/action_settings.png",
   			showAsAction : Ti.Android.SHOW_AS_ACTION_ALWAYS
   		});
   		menuItem2.addEventListener("click", function(e) {
   			alert("I was clicked 2");
   		});
   	};
   });
   
   

   <?xml version="1.0" encoding="UTF-8"?>
   <ti:app xmlns:ti="http://ti.appcelerator.org">
       <id>com.stendapps.teststatusbar</id>
       <name>QnA</name>
       <version>1.0</version>
       <publisher>stefano</publisher>
       <url>http://</url>
       <description>not specified</description>
       <copyright>2013 by stefano</copyright>
       <icon>appicon.png</icon>
       <persistent-wifi>false</persistent-wifi>
       <prerendered-icon>false</prerendered-icon>
       <statusbar-style>default</statusbar-style>
       <statusbar-hidden>false</statusbar-hidden>
       <fullscreen>true</fullscreen>
       <navbar-hidden>false</navbar-hidden>
       <analytics>true</analytics>
       <guid>056b02f9-512f-4a40-b1b6-fe7412fb2590</guid>
       <property name="ti.ui.defaultunit" type="string">system</property>
       <property name="ti.facebook.appid">410842299029388</property>
       <iphone>
           <orientations device="iphone">
               <orientation>Ti.UI.PORTRAIT</orientation>
           </orientations>
           <orientations device="ipad">
               <orientation>Ti.UI.PORTRAIT</orientation>
               <orientation>Ti.UI.UPSIDE_PORTRAIT</orientation>
               <orientation>Ti.UI.LANDSCAPE_LEFT</orientation>
               <orientation>Ti.UI.LANDSCAPE_RIGHT</orientation>
           </orientations>
       </iphone>
       <android xmlns:android="http://schemas.android.com/apk/res/android">
          
           <manifest android:installLocation="preferExternal">
           	<supports-screens android:anyDensity="false"/>
           	<uses-sdk android:maxSdkVersion="17" android:minSdkVersion="8" android:targetSdkVersion="14"/>
           	<application>
                   <activity android:alwaysRetainTaskState="true"
                       android:configChanges="keyboardHidden|orientation"
                       android:label="Test "
                       android:name=".QnaActivity" android:theme="@android:style/Theme.Holo.Light">
                       <intent-filter>
                           <action android:name="android.intent.action.MAIN"/>
                           <category android:name="android.intent.category.LAUNCHER"/>
                       </intent-filter>
                        
                   </activity> 
               </application>
                
           </manifest>
       </android>
       <mobileweb>
           <precache/>
           <splash>
               <enabled>true</enabled>
               <inline-css-images>true</inline-css-images>
           </splash>
           <theme>default</theme>
       </mobileweb>
       <modules>
           <module platform="android">ti.map</module>
       </modules>
       <deployment-targets>
           <target device="android">true</target>
           <target device="blackberry">false</target>
           <target device="ipad">true</target>
           <target device="iphone">true</target>
           <target device="mobileweb">true</target>
           <target device="tizen">false</target>
       </deployment-targets>
       <sdk-version>3.1.3.GA</sdk-version>
       <property name="ti.deploytype">development</property>
   </ti:app>