title: officeHome doesn't exist or is not a directory
body: <p>I've installed document-viewer on Plone. 
  When I upoad a document I receive this error:</p>
  
  <pre><code>Exception in thread "main" java.lang.IllegalStateException: officeHome doesn't exist or is not a directory: 
      at org.artofsolving.jodconverter.office.DefaultOfficeManagerConfiguration.buildOfficeManager(DefaultOfficeManagerConfiguration.java:165)
      at org.artofsolving.jodconverter.cli.Convert.main(Convert.java:111)
  </code></pre>
  
  <p>My openoffice installation is in /opt/openoffice4
  I'm using docsplit v 0.6.4</p>
  
  <p>how can I solve this?</p>