ra striping class name, so it actually isn't included in the theme variable above
        // this is ONLY needed for bootstrap theming if you are using the filter widget, because rows are hidden
        // zebra : ["even", "odd"],
        // class names added to columns when sorted
        // reset filters button
        filter_reset : ".reset",
        filter_external : '.search',
        filter_columnFilters: false,
        // extra css class name (string or array) added to the filter element (input or se