title: Trying to update name and date in a highcharts column chart
body: <p>I have a highcharts column chart with several sets of data. I need to be able to change the name of a series , the data and add or remove series. 
  I am unable to update an existing series. This is a short example of the code:</p>
  
  <pre><code>        var InvChart = $('#Inv-summary').highcharts();
          var master=[];
          var type1 = "stock";
          var range1 = 1100000;
          var range2 = -750000;
          master.push({name: type1 ,data: [range1, range2]}); 
          InvChart.series[0].setData(master,true); 
  </code></pre>
  
  <p>thanks for any help,</p>