<configure
    xmlns:plone="http://namespaces.plone.org/plone"
    >

  <include package="plone.app.portlets" />

  <plone:portlet
      name="wmowonen.theme.portlet.extendedcollection"
      interface=".extendedCollection.IExtendedCollectionPortlet"
      assignment=".extendedCollection.Assignment"
      renderer=".extendedCollection.Renderer"
      addview=".extendedCollection.AddForm"
      editview=".extendedCollection.EditForm"
      />

</configure>