title: JQuery UI Autocomplete: Auto height does not respect maxHeight
body: <p>I would like my jQuery UI AutoComplete to have the dynamic window size containing the available options, but also to have a max height so that when there are a large number of options returned it does not take up the whole page.</p>
  
  <p>When I have the following, the height is dynamic but maxHeight is ignored:</p>
  
  <pre><code>    .ui-autocomplete {
      height: auto;
      max-height: 250px;
      overflow-y: auto;
      width:auto;
  }
  </code></pre>
  
  <p>When I have the following, the height is not dynamic but maxHeight works:</p>
  
  <pre><code>    .ui-autocomplete {
      height: 250px;
      max-height: 250px;
      overflow-y: auto;
      width:auto;
  }
  </code></pre>