title: DataTables show "Processing..." label when dynamically fnAddData
body: <p>I have a function to dynamically add data into the DataTables. Here is the function.</p>
  
  <pre><code>function fnClickAddRow() {
      for (i=0; i&lt;10000; i++) {
          $('#example').dataTable().fnAddData( [
           giCount+".1",
           giCount+".2",
           giCount+".3",
           giCount+".4" ]
          );
      }
  }
  </code></pre>
  
  <p>This function will dynamically append into my <strong>#example</strong> datatable, but the screen looks hanging during the manipulation, is there a way to show the loading / processing sign using the <strong>"processing": true,</strong> </p>