Fix problem when deleting multiple topics from a forum in bulk. We getting a list of topics from the database, then deleting each topic. But after you delete a topic, the forum.last_post on the remaining non-deleted topics can be stale. This was causing a weird DoesNotExist. Now just get the topics one at a time from the database.

{% extends 'base.html' %}
{% block title %}Logged Out{% endblock %}
{% block content %}
<h2>Logged Out</h2>
<p>You are now logged out of SurfGuitar101.com. Thanks for spending some quality time with us today. Tell all your
friends about us and we hope we see you soon!</p>
{% endblock %}