Send email notification of a new comment to site staff when email
        notifications have been requested.

def email(self, comment, content_object, request):
        """
        Send email notification of a new comment to site staff when email
        notifications have been requested.

        """
        if not self.email_notification:
            return
        recipient_list = [manager_tuple[1] for manager_tuple in settings.MANAGERS]
        t = loader.get_template('comments/comment_notification_email.txt')
        c = Context({ 'comment': comment,
                      'content_object': content_object })
        subject = '[%s] New comment posted on "%s"' % (get_current_site(request).name,
                                                          content_object)
        message = t.render(c)
        send_mail(subject, message, settings.DEFAULT_FROM_EMAIL, recipient_list, fail_silently=True)