code: function(req, res) {
          var ontologies = fs.readdirSync(ontoDir), kb = Hylar.getDictionary().values(),
              nbExplicit = Logics.getOnlyExplicitFacts(kb).length,
              nbImplicit = kb.length - nbExplicit,
              consistent = Hylar.checkConsistency().consistent;
  
          res.render(htmlDir + '/pages/index', {
              kb: kb,
              ontologies: ontologies,
              nbExplicit: nbExplicit,
              nbImplicit: nbImplicit,
              consistent: consistent,
              contextPath: contextPath
          });
      }
docs: Simple HelloWorld
  @param req
  @param res