title: Google column chart vAxis.minValue doesn't work with all zero values
body: <p>I am running into a case where all the data is by default coming as zero. Something like this:</p>
  
  <pre><code>    function drawVisualization() {
    // Create and populate the data table.
    var data = google.visualization.arrayToDataTable([
      ['Year', 'Austria', 'Belgium', 'Czech Republic', 'Finland', 'France', 'Germany'],
      ['2003',  0,   0,       0,       0,   0,  0],
      ['2004',  0,   0,       0,       0,   0,  0],
      ['2005',  0,   0,       0,      0,   0,  0],
      ['2006',  0,   0,       0,       0,   0,  0],
      ['2007',  0,   0,       0,       0,   0,  0],
      ['2008',  0,   0,       0,       0,   0,  0]
    ]);
  
    // Create and draw the visualization.
    new google.visualization.ColumnChart(document.getElementById('visualization')).
        draw(data,
             {title:"Yearly Coffee Consumption by Country",
              width:600, height:400,
              hAxis: {title: "Year"},vAxis:{minValue:0,format:"#"}}
        );
  }
  </code></pre>
  
  <p>If you copy above code and play around on google <a href="https://code.google.com/apis/ajax/playground/#column_chart" rel="noreferrer">playground</a> you will find that the graph is hard limiting the minimum value to -1.0. What I wanted is to start the vAxis from zero and pick only integral values. But it is not happening. 
  I have also tried viewWindowMode but, it also couldn't solve the problem. Screenshot below of how it got rendered.<img src="https://i.stack.imgur.com/QfXrA.png" alt="enter image description here"></p>