Fix #126. Incorporate the repoze timeago function as a new 'elapsed' template filter. This should save space in the shoutbox when displaying dates. Also used in the new posts forum template tag.

<div class="smiley_farm">
{% for s in smilies %}
<img src="{{ s.image.url }}" alt="{{ s.code }}" title="{{ s.title }} {{ s.code }}" />
{% endfor %}
</div>