gistfile1.js

var _options = { "appTitle": "Top 3 Biscuits",
          "settingsLinks": [
                    {
                              "linkUrl": getSharePointRootTenantUrl(_hosturl),
                              "displayName": _hostTitle ? _hostTitle : 'Home'
                    }
          ]
};
var _nav = new SP.UI.Controls.Navigation("chrome_ctrl_placeholder", _options );

var _title = $("#chromeControl_topheader_sitetitle").text();

$("#chromeControl_bottomheader").remove();
$('body').css('overflow-y', 'auto');
$("#chromeControl_topheader_sitetitle").text(​_title.replace(/\++/g," ");

_nav.setVisible(true);