[TIMOB-18872] Actionbar 'icon' property is broken with latest 4.0.0 SDK

var win = Ti.UI.createWindow({
    navBarHidden: false
});
var actionBar;

win.addEventListener("open", function() {
    if (Ti.Platform.osname === "android") {
        if (! win.activity) {
            Ti.API.error("Can't access action bar on a lightweight window.");
        } else {
            actionBar = win.activity.actionBar;
            if (actionBar) {
                actionBar.icon = "/icon.png"; 
                actionBar.title = "New Title";
                actionBar.onHomeIconItemSelected = function() {
                    Ti.API.info("Home icon clicked!");
                };
            }
        }
    }
});

win.open();