title: Install "elasticsearch" instead of "pyelasticsearch"
body: <p>How can I install official elasticsearch binding for python instead of pyelasticsearch?
  Haystack documentation says:</p>
  
  <blockquote>
    <p>You’ll also need an Elasticsearch binding: elasticsearch-py (NOT
    pyes). Place elasticsearch somewhere on your PYTHONPATH (usually
    python setup.py install or pip install elasticsearch).</p>
  </blockquote>
  
  <p>But when I install elasticsearch with pip, haystack still asks for pyelasticsearch.</p>