message: Update noticeboard for geolocation regression
diff: <h3>Noticeboard for 2018</h3>
  <p>Any updates or disruptions will be listed below.</p>
  <ul>
  - <li>Nothing to date</li>
  + <li><strong>14-18 June</strong> Following the switch to the new ONSPD CSV schema, <code>longitude</code> and <code>latitude</code> for entities with no geolocation were returned as <code>0</code> and <code>99.9999...</code> instead of <code>null</code> and <code>null</code>. Old behaviour has been restored as at 19th June (version 9.0.1)</li>
  </ul>
  <hr />
  <h3>Email</h3>
  