title: jqplot bar graph issue
body: <p>I need help to draq a graph with jqplot. The graph is simple, but jqplot make it complicated.
  I need to get a graph like this:</p>
  
  <p><img src="https://i.stack.imgur.com/TBxuO.jpg" alt="enter image description here">
  .</p>
  
  <p>with some improvements:</p>
  
  <p>The colors are defined here: </p>
  
  <pre><code>graphColors = ['#048ff1', '#79b924', '#ffa600', '#ef5257', '#7b279b', '#8ff104',
                 '#b92479', '#5257ef', '#279b7b', '#f1048f', '#00ffa6', '#9b7b27']
  </code></pre>
  
  <p>Some render options are here:</p>
  
  <pre><code>seriesDefaults: {
      seriesColors: graphColors,
      renderer: $.jqplot.BarRenderer,
      rendererOptions: { barDirection: 'vertical' }
      },
      axes: {
          yaxis: {
              renderer: $.jqplot.CategoryAxisRenderer,
              ticks: [ /* to be filled in automatically */ ]
          },
      xaxis: {
          min: 0
          }
      }
  </code></pre>
  
  <p>and the data I need to render is here:</p>
  
  <pre><code>//in the image I used instead of letters '1'
  data = [[['a', 1112]],
          [['b', 1127]],
          [['c', 822]],
          [['d', 1039]]
         ];
  </code></pre>
  
  <p>Questions:</p>
  
  <ol>
  <li><p>How to set for each bar a label ('a', 'b', 'c', 'd' etc)?</p></li>
  <li><p>How to move the series to start from left (and not in the middle as now, of course with a small margin on left?</p></li>
  <li><p>The values on y axis, values bigger than 1000 are rendered over the graph lines. How to set a space between axis values and graph?</p></li>
  <li><p>The graph I want to draw is simple. It is possible to obtain the same result without using series? All I want is a bar graph with each bar having a distinct color and displaying a specific label?</p></li>
  </ol>
  
  <p>Thank you.</p>