title: Sorting an Array of custom objects by a dictionary included in the custom object: How?
body: <p>I have an array of custom objects. The objects includes a dictionary.
  Something like this:</p>
  
  <pre><code>CustomDataModel *dataModel;
  
  dataModel.NSString
  dataModel.NSDictionary
  dataModel.image
  </code></pre>
  
  <p>I'd like to sort by one of the objects in the dictionary:</p>
  
  <pre><code>dataModel.NSDictionary ObjectWithkey=@"Name"
  </code></pre>
  
  <p>The dataModel gets loaded into an NSArray. I now want to sort the by the @"Name" key in the dictionary. Is this something NSSortDescriptor can handle? Basic sort works fine, just haven't figured this one out  yet...</p>