title: kendo-ui grid filter icon not displaying
body: <p>Filter icon not displaying in the tab. But when I try to click in the last filter options displayed.
  How to show filter icon and what code I need to write..</p>
  
  <pre><code>$("#grid").kendoGrid({
          dataSource: dataSource,
          dataBound: function(){
              updateGridForStage(stage)
              riskGridTitle()
          },
          height: 'auto',
          scrollable: true,
          sortable: true,
          filterable: Object,
          pageable: false,
          columns: [
              { field: "subject", title: "Subject", width: "40%" },
              { field: "status", title: "Status", width: "30%" },
              { field: "risk", title: "Score", width: "10%" },
              { field: "owner", title: "Owner", width: "25%" },
              { field: "days_open", title: "Days Open", width: "15%" },
              { field: "next_review", title: "Next Review Date", width: "25%" },
              { command}]
  });
  </code></pre>
  
  <p>"I need to display icon near status"</p>