wallets now sorted as well as deduplicated

templates/cavewallets.html

@@ -12,7 +12,7 @@ traced to produce Tunnel or Therion drawings and eventually the final complete c
 
 <table width=95%>
 <tr><th>Scans folder</th><th>Files</th><th>Survex blocks</th><th>Cave</th></tr>
-{% for scanswallet in manywallets %}
+{% for scanswallet in manywallets|dictsort:"walletname" %}
   <tr>
     <td style="padding:2px"><a href="{{scanswallet.get_absolute_url}}">{{scanswallet.walletname}}</a></td>
     <td align="right" style="padding:2px">{{scanswallet.singlescan_set.all|length}}</td>