title: How do I get the indexed terms from elasticsearch
body: <p>How do I dump out the term dictionary from Elasticsearch?</p>
  <p>I just want to look for pathological cases in indexing, so I want to see what is actually getting put into the index.</p>
  <p>These are text fields, so I can't just do a terms aggregation.</p>
  <p>_termvectors only works for single or multiple documents. I want top terms in the index, like the terms component in Solr.</p>