title: Is it possible to put html (e.g. bootstrap icon) in DevExpress dxDataGrid column caption?
body: <p>I have a dxDataGrid and I want to put a Bootstrap icon in the column header 'caption'.</p>
  
  <p>Normal bootstrap html for an icon would be something like:</p>
  
  <pre><code>&lt;i class="glyphicon glyphicon-gbp"&gt;&lt;/i&gt;
  </code></pre>
  
  <p>For simplicity, the code for the dxDataGrid is straight from the DevExpress dxDataGrid tutorial:</p>
  
  <pre><code>$("#gridContainer").dxDataGrid({
      dataSource: books,
      columns: [
          { dataField: 'author', width: 125 },
          'title',
          { dataField: 'year', width: 60 },
          { dataField: 'genre', visible: false },
          { dataField: 'price', width: 100, format: 'currency', precision: 2 },
          { dataField: 'length', width: 65 },
          { dataField: 'format', width: 90 }
      ],
      columnChooser: { enabled: true },
      allowColumnReordering: true
  });
  </code></pre>
  
  <p>So I would like to add the '£' glyphicon to the price column 'caption' field, </p>
  
  <pre><code>{dataField: 'price', caption: '&lt;i class=glyphicon glyphicon-gbp&gt;&lt;/i&gt;', width: 100, format: 'currency', precision: 2 },
  </code></pre>
  
  <p>but the datagrid just displays the html in string format.</p>
  
  <p>Does anyone know how I can input/format the html to get it to render?</p>