[TIMOB-3321] iOS: Tab touchEnabled not recognized

Problem

In an effort to adjust spacing between tabs (specifically on an iPad) users would like to put in blank tabs with no touch events. In the documentation we have a touchEnabled: false property that does not work.

Test Code

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 win2 = Titanium.UI.createWindow({  
    title:'Tab 2',
    backgroundColor:'#fff'
});
var tab2 = Titanium.UI.createTab({  
    icon:'KS_nav_ui.png',
    title:'Tab 2',
    window:win2,
    width:200
});
var tab3 = Titanium.UI.createTab({  
    touchEnabled:false
});
var tab4 = Titanium.UI.createTab({  
    touchEnabled:false
});
tabGroup.addTab(tab1);  
tabGroup.addTab(tab3);  
tabGroup.addTab(tab4);   
tabGroup.addTab(tab2);
tabGroup.open();

Ticket Reference http://developer.appcelerator.com/helpdesk/view/76410">http://developer.appcelerator.com/helpdesk/view/76410