title: Range Query not returning results in Elasticsearch
body: <p>I am trying to fetch the following section of a document i have indexed through elasticsearch:</p>
  
  <pre><code>temporal: {
  begin: "2016-11-30T00:00:00",
  end: "2016-12-08T13:55:02"
  },
  </code></pre>
  
  <p>The query that i am using on CURL as i am currently just testing the queries on localhost is the following one :</p>
  
  <pre><code>curl -XGET 'localhost:9201/_search?pretty' -H 'Content-Type: application/json' -d'
  {
      "query": {
          "range" : {
              "timestamp" : {
                  "gte": "2015-01-01 00:00:00", 
                  "lte": "now"
              }
          }
      }
  }
  '
  </code></pre>
  
  <p><strong>mapping</strong></p>
  
  <pre><code>temporal: {
  properties: {
  begin: {
  type: "date"
  },
  end: {
  type: "date"
  }
  }
  }
  </code></pre>
  
  <p><strong>but the above mentioned query does not returns any successful hits although it should return at least the document mentioned above.</strong></p>