title: How to forbid gridster to move widget element down
body: <p>All board is filled by widgets, without margin. And when i try to move element from one column(1) to another(2) the elements at column 2 just go down out of the board like:</p>
  
  <p><img src="https://f.cloud.github.com/assets/3517287/2371767/860d6c26-a82e-11e3-84f7-da7e1be1a6a4.png" alt="errormovewidget"></p>
  
  <p>I'd like to forbid placing a widget to a place if there is no place for widgets in the column.</p>
  
  <p>My code:</p>
  
  <pre><code>   gridster = $(".gridster &gt; ul").gridster({
  
            widget_margins: [mySizeDetector.blockMargin, mySizeDetector.blockMargin], 
            widget_base_dimensions: [mySizeDetector.dx, mySizeDetector.dy], /*[width, height]*/
            min_cols: mySizeDetector.xCount,
            min_rows: mySizeDetector.yCount,
    }).data('gridster');
  </code></pre>
  
  <p>Thanks in advance!</p>