title: List directories in amazon S3 with AWS SDK
body: <p>I am trying to list folders in S3:</p>
  
  <pre><code>string delimiter = "/";
  folder = "a/";
  ListObjectsResponse r = s3Client.ListObjects(new Amazon.S3.Model.ListObjectsRequest()
  {
    BucketName = BucketName,
    Prefix = folder, 
    MaxKeys = 1000,
    Delimiter = delimiter
  });
  </code></pre>
  
  <p>and i expect list of directories such as:</p>
  
  <pre><code>a/Folder1
  a/Folder2
  ....
  a/FolderN
  </code></pre>
  
  <p>but my actual result is only 1 object:
  <strong>'a1'</strong></p>