title: MWFeedParser tag inside tag (media:thumbnail)
body: <p>i am using MWFeedParser to read from Youtube atom feed from here: <a href="http://gdata.youtube.com/feeds/api/users/FPSRussia/uploads?alt=rss" rel="nofollow">here</a></p>
  
  <p>Xml code:</p>
  
  <pre><code> &lt;media:thumbnail url='http://i.ytimg.com/vi/7_1PfqGVSg0/0.jpg' height='240' width='320' time='00:01:34.500'/&gt;
  </code></pre>
  
  <p>how i can get the url of media:thumbnail?
  i tried to change in MWFeedParser.m
  from this:</p>
  
  <pre><code>else if ([currentPath isEqualToString:@"/feed/entry/link"]) { [self processAtomLink:currentElementAttributes andAddToMWObject:item]; processed = YES; }
  </code></pre>
  
  <p>to this:</p>
  
  <pre><code>else if ([currentPath isEqualToString:@"/feed/entry/media:thumbnail"]) { [self processAtomLink:currentElementAttributes andAddToMWObject:item]; processed = YES; }
  </code></pre>
  
  <p>but it doesn't work :(</p>