rename .html templates to .jinja2 for more consistency

templates/contributions.html

@@ -1,30 +0,0 @@
-{% extends "base.html" %}
-
-{% block title %}Contributions of {{ u.username }} - {{ app_name }}{% endblock %}
-
-{% block meta %}
-<meta name="robots" content="noindex,nofollow" />
-{% endblock %}
-
-{% block content %}
-<h1>Contributions of {{ u.username }}</div>
-
-<ul>
-{% for rev in contributions %}
-  <li>
-    <a href="/history/revision/{{ rev.id }}/">
-      #{{ rev.id }}
-      &middot;
-      {{ rev.pub_date.strftime("%B %-d, %Y %H:%M:%S") }}
-      {% if rev.comment %}
-      “{{ rev.comment }}”
-      {% endif %}
-    </a>
-    on
-    <a href="{{ rev.page.get_url() }}">
-      {{ rev.page.title }}
-    </a>
-  </li>
-{% endfor %}
-</ul>
-{% endblock %}