title: iFrame option in media plugin for TinyMCE
body: <p>When you look at the <a href="http://tinymce.moxiecode.com/tryit/full.php" rel="nofollow">demo of tinyMCE</a>, and click on the <em>media</em> button, you can find the options HTML5 Video and iFrame.
  Now, when I download the newest version of TinyMCE I see that these options are missing!<br>
  Because I would like to have the iFrame option in my own TinyMCE editor, I'm asking you:</p>
  
  <p>How can I get this option too?</p>
  
  <p>P.S.: The version I'm using is 3.4.2</p>