title: 'apiKey.id is required' error thrown when using express-stormpath with node.js
body: <p>I am using express-stormpath with node.js to set up a backend server. This is a snippet of my server.js code where I get an error thrown -</p>
  
  <pre><code>app.use(stormpath.init(app, {
   apiKeyFile: './config/.stormpath/apikey.properties',
   application: '&lt;API_HREF&gt;',
   secretKey: security.stormpath_secret_key
   }));
  </code></pre>
  
  <p>This is the error - </p>
  
  <pre><code>$ node server.js
  ../webservices/node_modules/express-    
  stormpath/node_modules/stormpath/lib/authc/RequestAuthenticator.js:8
  throw new Error('apiKey.id is required.');
  </code></pre>
  
  <p>How do I fix this? </p>