title: highcharts dataLabel overflow: justify issue
body: <p>I've upgraded from highcharts 3.0.5 to 3.0.7 and with that change came the dataLabels <code>overflow:justify</code> property that is set to justify the dataLabels (see <a href="http://jsfiddle.net/WN8wV/" rel="nofollow">this fiddle</a> for an example). This will just slide labels that fall outside of the chart into the bar, but the color doesn't change and there doesn't appear to be an option to change the color. Is there A) any way to force the label to appear beside the bar and readjust the size of the bars, or B) any way to change the color when <code>overflow: justify</code> kicks into play?</p>
  
  <p>The only "fix" that immediately comes to mind is to provide some maxPadding, but that feels a bit hacky.</p>