title: Datatables button extension with RequireJS
body: <p>i have problem load datatable library using require js
  this is my code</p>
  
  <pre><code>require.config({
      paths: {
          "jquery" :    "https://code.jquery.com/jquery-2.2.4.min",
          "datatables" : "https://cdn.datatables.net/1.10.12/js/jquery.dataTables.min",
          "datatables-btn" : "https://cdn.datatables.net/buttons/1.2.1/js/dataTables.buttons.min",
      }
  });
  
  
  requirejs( ["datatables", "datatables-btn"], function() {
      $('#example').DataTable( {
          dom: 'Bfrtip',
          buttons: [
              'copy', 'csv', 'excel', 'pdf', 'print'
          ]
      });
  });
  </code></pre>
  
  <p>and i got this error on development console 
  <a href="http://i.stack.imgur.com/3EVWy.png" rel="nofollow">error log</a></p>
  
  <p>thanks for your help..</p>