<a class="ordering"
  href="{{ base_url }}?{{ querystring }}&o={{ descending|yesno:"-," }}{{ field }}">
  {% if used %}<i class="foundicon-chevron-{{ descending|yesno:"down,up" }}"></i>{% endif %}
  {{ title|default:field }}</a>

<a class="ordering"
  href="{{ base_url }}?{{ querystring }}&o={{ descending|yesno:"-," }}{{ field }}">
  {% if used %}
    <i class="foundicon-{{ descending|yesno:"down,up" }}-arrow"></i>
  {% endif %}
  {{ title|default:field }}
</a>

Fix the ordering link template to actually show icons
Fix the ordering link template to actually show icons
