title: jqgrid - saveRow url throwing an exception
body: <p>In inline editing mode, clicking on "Save" is throwing an error.</p>
  
  <pre><code>var rowSave = function(id){     
      jQuery("#myjqgrid").jqGrid('saveRow',id,{
          "succesfunc": function(response) {
              return true; 
          },                                  
          "url": myjqgrid.json
          "mtype": "GET"
      });
  }
  </code></pre>
  
  <p><strong>Is it because the <code>url</code> is set to <code>json</code>?</strong> </p>
  
  <p>Basically, I get JSON response when the grid is loaded the first time. After I edit the row in inline editing mode, the edited data should be sent to the server. When the data is saved on the server, it should return the updated JSON and the grid row data should be updated with the updated JSON response.</p>