code: function set(app, prop, val) {
    var data = app.cache.data.project;
    if (typeof val !== 'undefined') {
      data[prop] = val;
    } else if (typeof app.cache.data[prop] !== 'undefined') {
      data[prop] = app.cache.data[prop];
    }
  }
docs: Set data values on the `app.cache.data.project` object, which is
  merged onto the context at render time and is available in templats
  as `project`.