title: First point on scatter plot on JavaScript chart.js not showing
body: <p>I created a scatter plot, this is the code below. The point at (0,0) does not show on the chart (actually it happens as long as x=0, y can be anything). If I hover on that point, the tooltip does show. Also when I set a title in the options, the title does not show up on the page.</p>
  
  <p>Also how can I put a label on the x and y axis?</p>
  
  <p>Does anyone know what I am doing wrong?</p>
  
  <p>Thanks</p>
  
  <pre><code> &lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
  &lt;title&gt;Title of the document&lt;/title&gt;
  &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.0/Chart.min.js"&gt;&lt;/script&gt;
  &lt;/head&gt;
  
  &lt;body&gt;
  
  
  &lt;script&gt;
      var canvas = document.createElement('canvas');
      canvas.width = 400;
      canvas.height = 400;
  
      document.body.appendChild(canvas);
  
      var coordinates = [
          {x:0,y:0}, {x:5,y:5}, {x:15,y:15}, {x:20,y:20}, {x:25,y:25}
      ];
  
      var d1 = coordinates.slice(0,3);
      var d2 = coordinates.slice(3,coordinates.length);
      var data = {
          datasets: [
              {
                  label: "Most Relavant",
                  borderColor: 'red',
                  backgroundColor : 'rgba(255,0,0,0.5)',
                  data: d1
              },
              {
                  label: "Others",
                  borderColor: 'blue',
                  backgroundColor : 'rgba(0,0,255,0.5)',
                  data: d2
              }
          ]
      };
  
      new Chart(canvas, {
          type: 'scatter',
          data: data,                
          title:{
              display:true,
              text:'Chart.js Line Chart'
          },
          options: {
              responsive : false,
              scales: {
                  xAxes: [{
                      type: 'linear',
                      position: 'bottom'
                  }]
              }
          }
      });
  &lt;/script&gt;
  &lt;/body&gt;
  
  &lt;/html&gt; 
  </code></pre>
  
  <p>I am on chrome 61 and 62. See screenshot:</p>
  
  <p><img src="https://user-images.githubusercontent.com/5560751/31807903-b699ac58-b53e-11e7-9084-e931715f0dbd.PNG" alt="capture"></p>