Agenda scheduled job running only once
<p>I have a sample program to start working with Agenda, and it gets stuck after running the first time.</p>

<pre><code> var Agenda = require('agenda');

 var agenda = new Agenda({db: {address: 'localhost/sample-dev', collection: 'pollingJob'}});

agenda.define('First1', function(job, done) {
  var d = new Date();
  console.log("Hello First Job at " + d );
});

agenda.on('ready', function() {
  agenda.every('5 seconds', 'First1');
  agenda.start();
});
</code></pre>

<p>I have done it all as per the instructions on <a href="https://github.com/rschmukler/agenda" rel="nofollow">Agenda</a>, am I missing something out here?</p>