title: Django Widget Media doesn't work
body: <p>I need a widget, which should only display a  block, because i will add functionality with jQuery. I am trying to include the javascript and stylesheet trough the "Media" class of Widget and it doesn't work for me. </p>
  
  <p>Here is the code:</p>
  
  <pre><code>class StarsWidget(Widget):
      """
      Widget with stars for rating
      """
      class Media:
          js = (
                  settings.MEDIA_URL + 'js/rating.js',
                )
  
          css = {
                  'screen': (
                      settings.MEDIA_URL + 'css/rating.css',
                      )
                }
  
  
      def render(self, name, value, attrs=None):
          if value is None: value = ''
  
          attrs = {'id':'ratingX', 'class':'rating'}
          final_attrs = self.build_attrs(attrs, name=name)
          if value != '':
              # Only add the 'value' attribute if a value is non-empty.
              final_attrs['value'] = force_unicode(value)
          return mark_safe(u'&lt;div %s &gt;&lt;/div&gt;' % flatatt(final_attrs))
  </code></pre>
  
  <p>Any suggestions or help will be appreciated</p>