#26 Annual conservation reports

* adds index form for selecting timespan and office of interest
* adds timespan support for TimespanReport
* fixes naive datetime issues
* fixes missing error message css tag
* adds/updates translations

analysis/templates/analysis/reports/index.html

@@ -3,6 +3,8 @@
 
 {% block body %}
     <div class="row">
-        <h3>{% trans 'Reports' %}</h3>
+        <div class="col-sm-12 col-md-12 col-lg-12">
+             {% include 'form/table/generic_table_form.html' %}
+        </div>
     </div>
 {% endblock %}