For #242, move the updating of the POTD sequence into a new signals module. When photos are deleted from the admin changelist in bulk, the individual delete() functions on the photo objects is not called. However, the post_delete signal is called for each object.

{% extends 'weblinks/base.html' %}
{% block title %}Web Links: {{ link.title }}{% endblock %}
{% block weblinks_content %}
<h3>Link Details: {{ link.title }}</h3>
<dl>
{% include 'weblinks/link.html' %}
</dl>
{% endblock %}