rename .html templates to .jinja2 for more consistency

templates/circles/stats.html

@@ -1,30 +0,0 @@
-{% extends "base.html" %}
-
-{% block title %}Circles – {{ app_name }}{% endblock %}
-
-{% block content %}
-<h1>Stats</h1>
-
-<ul>
-  <li>All people: <strong>{{ count }}</strong></li>
-  <li>People by type:</li>
-  <ul class="wrap_responsive_cells_narrow">
-    {% for k in typed_count.items() %}
-    <li>{{ k[0] }}: <strong>{{ k[1] }}</strong></li>
-    {% endfor %}
-  </ul>
-  <li>People by status zone:</li>
-  <ul>
-    {% for k in status_count.items() %}
-    <li>{{ k[0] }}: <strong>{{ k[1] }}</strong></li>
-    {% endfor %}
-  </ul>
-  <li>People by area:</li>
-  <ul class="wrap_responsive_cells_narrow">
-    {% for k in area_count.items() %}
-    <li>Area {{ k[0] }}: <strong>{{ k[1] }}</strong></li>
-    {% endfor %}
-    <li>No area: <strong>{{ no_area_count }}</strong></li>
-  </ul>
-</ul>
-{% endblock %}