Now loading code_chunks module in template that needs it

Without this, the filters defined there cannot be used

blog/templates/blog/post.html

@@ -1,3 +1,4 @@
+{% load code_chunks %}
 <div class="post">
     <h3>{% if title_links %}<a href="{% url 'blog:read' post.created_at.year post.created_at.month post.created_at.day post.slug %}">{% endif %}{{ post.title }}{% if title_links %}</a>{% else %}<div class="plusone-container"><div class="g-plusone" data-annotation="inline" data-size="small" data-width="300"></div></div>{% endif %}</h3>
     <p class="article-date">{{ post.created_at|date:'m-d-Y :: H:i' }} by {{ post.user.first_name }} {{ post.user.last_name }}</p>