code: function (options) {
              options = options || {};
              var location = options.appendTo || options.useLocation;
              return this._render(this.subViews, location, options.clearLocations);
          }
docs: Render all Subviews.
  @memberOf SubViewManager#
  @type {SubViewManager}
  @param {object} [options]
  [options.appendTo] A selector, HTMLElement, or $ instance to append the subViews to
  [options.useLocation=false]
  True if you want to append the subviews to the locations in their config if they
  have one.
  [options.clearLocations=false]
  True if you want to use empty on the configured locations
  
  @return {SubViewManager}