title: as3 Greensock LoaderMax memory
body: <p>I have a bit trouble with LoaderMax memory occupy, i have a queue, and i am keep loading images depend on user's action. if they click load more and it keep load, but i would like to clean the memory which been occupied by the previous queue (i have remove all the children been added by the loading previously). is there a way i can do it?</p>
  
  <p>the behavior like this.</p>
  
  <blockquote>
    <p>load
      (load the page 1)
    load
      (load the page 2 and clean the page 1)</p>
  </blockquote>
  
  <pre><code>queue = new LoaderMax({name:"mainQueue", autoDispose :'true'});
  </code></pre>
  
  <p>**</p>
  
  <blockquote>
    <p>A very quick question, everything in the queue (images). Do they all
    cache in the browser?</p>
  </blockquote>
  
  <p>** </p>