tstrap.com/css/#tables
      table        : 'table table-hover',
      caption      : 'caption',
      // header class names
      header       : 'bootstrap-header', // give the header a gradient background (theme.bootstrap_2.css)
      sortNone     : '',
      sortAsc      : '',
      sortDesc     : '',
      active       : '', // applied when column is sorted
      hover        : '', // custom css required - a defined bootstrap style may not override other classes
      // icon class names
      icons    