title: Issue in setting system variable ES_PATH_CONF for elasticsearch
body: <p>I have cloned <code>elasticsearch</code> project from GitHub to my local machine. Built it successfully and imported it into eclipse. </p>
  
  <p>When I am trying to run the <code>main()</code> method in <code>org.elasticsearch.bootstrap.ElasticSearch</code> class (which is the entry point for starting elasticsearch) getting the following error:</p>
  
  <p><code>ERROR: the system property [es.path.conf] must be set</code></p>
  
  <p>I tried setting the system variable <code>ES_PATH_CONF</code> to 
  <code>E:\Elasticsearch\Github\elasticsearch-master\distribution\src\main\resources\config</code>.</p>
  
  <p>But it’s not working I am still getting the same error.  Is the above location to <code>ES_PATH_CONF</code> variable correct? Is there any other way to solve this?</p>