title: How do I get at the goodies in my Grails Config.groovy at runtime?
body: <p>in Config.groovy I see this:</p>
  
  <pre><code>// set per-environment serverURL stem for creating absolute links
  environments {
      production {
          grails.serverURL = "http://www.changeme.com"
      }
  }
  </code></pre>
  
  <p>what is the correct way to access that at runtime?</p>