title: Grails filter multiple actions
body: <p>Within one filter, how can I match more than one action of the same controller?</p>
  
  <pre><code>def filters = {
    organisationDelete(controller: "organisation", action: "confirmDelete, delete") { 
      //...
    }
  }
  </code></pre>
  
  <p>In this mapping I have "confirmDelete" as a GET and "delete" as POST</p>