title: Synchronize ValueAxis grids
body: <p>I have these two <code>ValueAxes</code>:</p>
  
  <pre><code>{
      ...
      minimum: 0,
      maximum: 100,
      strictMinMax: true,
      autoGridCount: false,
      gridCount: 10
  },
  {
      ...
      minimum: -15,
      maximum: 215,
      strictMinMax: true,
      autoGridCount: false,
      gridCount: 10
  }
  </code></pre>
  
  <p>Now the grid lines of both axes are creating a total mess in the chart and its hard to not get confused while trying to read values. The reason for this is, that AmCharts rounds the labels up or down to ten-steps, not respecting the <code>gridCount</code>.</p>
  
  <p>I need to know if there's a way to get AmCharts to stop trying to round the labels. I'm totally fine to have numbers like <code>62</code> as a label, as long as it reduces the amount of grid lines.</p>