title: NumberSpinner constraints not working in DataGrid
body: <p>I am using inline editing of enhancedgrid cells and have a NumberSpinner element. The constraints of this numberspinner don't work when editing inline. The required property works fine though.
  My code:</p>
  
  <pre><code>{field: 'msorder', width: '10%', name: 'Milestone Order',editable: true, type: dojox.grid.cells._Widget, widgetClass: dijit.form.NumberSpinner, widgetProps: {required:true,smallDelta:1, editorParams:{constraints:{ min:-1000, max:1000, places:0 }} }}
  </code></pre>
  
  <p>I have also tried:</p>
  
  <pre><code>{field: 'msorder', width: '10%', name: 'Milestone Order',editable: true, type: dojox.grid.cells._Widget, widgetClass: dijit.form.NumberSpinner, widgetProps: {required:true,smallDelta:1, constraints:{ min:-1000, max:1000, places:0 } }}
  </code></pre>