Sort people by notability

Better errors and tidy
Nicer date formats

templates/expedition.html

@@ -69,7 +69,7 @@ an "S" for a survey trip.  The colours are the same for people on the same trip.
 {% regroup dateditems|dictsort:"date" by date as dates %}
 {% for date in dates %}
 <tr>
-<td>{{date.grouper}}</td>
+<td>{{date.grouper|date:"D d M Y"}}</td>
 <td>{% for item in date.list %}
         {% if item.isLogbookEntry %}<a href="{{ item.get_absolute_url }}">{{item.title|safe}}</a><br/>{% endif %}
     {% endfor %}</td>