title: Handsontable, colWidths: function: how to set a column width fitting content?
body: <p>My aim is to set the first column's width equal to a certain number and leave other columns' widths untouched. Now I know that setting</p>
  
  <pre><code>colWidths: [myValue]
  </code></pre>
  
  <p>actually breaks other columns' widths but this seems to be workaroundable using</p>
  
  <pre><code>colWidths: function(index) {
      if(index == 0)
          return myValue;
      return ???
  }
  </code></pre>
  
  <p>but I wonder what should I return in the place of <code>???</code>? <code>undefined</code> doesn't work (well, it works in the same fashion as <code>colWidths: [myValue]</code> – every other column gets the same default width). How do I get the "width by content" value for this?</p>