Add link to elastisearch plugin

doc/html/download.shtml

@@ -58,11 +58,19 @@ for the application to manage Kerberos V credentials.</li>
 </ul><br>
 
 <li><b>Databases</b> can be used to store accounting information.
-See our <a href="accounting.html">Accounting</a> web page for more information.</li>
+See our <a href="accounting.html">Accounting</a> web page for more information.
 <ul>
 <li><a href="http://www.mysql.com/">MySQL</a></li>
 <li><a href="https://mariadb.org/">MariaDB</a></li>
 </ul><br>
+In addition, job completion data can be written to an
+<a href="http://www.elasticsearch.org/">elasticsearch</a> server using the
+"job_comp/elasticsearch" plugin.
+The plugin is currently available from
+<a href="https://github.com/asanchez1987/jobcomp-elasticsearch.git">
+https://github.com/asanchez1987/jobcomp-elasticsearch.git</a>
+and merged with the Slurm distribution.
+It may be included directly in a future release of Slurm.</li><br>
 
 <li><b>Debuggers</b> and debugging tools</li>
 <ul>
@@ -348,6 +356,6 @@ easy and elegantly manner.
 
 </ul>
 
-<p style="text-align:center;">Last modified 11 December 2014</p>
+<p style="text-align:center;">Last modified 16 January 2015</p>
 
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