title: configatron shorthand for namespaces
body: <p>Is there a way to avoid typing the namespace each time when using the configatron gem?
  Say, you have </p>
  
  <pre><code>  configatron.email.pop.address = 1
    configatron.email.pop.port = 2
  </code></pre>
  
  <p>Can I configure port and address by somehow typing <code>configatron.email.pop</code> only once?</p>