karma: remove the rank from the index table

it's kind of redundant anyway, since we include the score

dr_botzo/karma/templates/karma/index.html

@@ -15,14 +15,12 @@
         <tr>
           <th>Key</th>
           <th>Score</th>
-          <th>Rank</th>
         </tr>
       </thead>
       <tfoot>
         <tr>
           <th>Key</th>
           <th>Score</th>
-          <th>Rank</th>
         </tr>
       </tfoot>
       <tbody>
@@ -30,7 +28,6 @@
         <tr>
           <td><a href="{% url 'karma_key_detail' entry.key %}">{{ entry.key }}</a></td>
           <td>{{ entry.score }}</td>
-          <td>{{ entry.rank }}</td>
         </tr>
         {% endfor %}
       </tbody>
@@ -39,8 +36,8 @@
   <script type="text/javascript">
     $(document).ready(function() {
       $('#karma').DataTable( {
-        "order": [[ 2, "asc" ]],
-        "lengthMenu": [[50, 100, -1], [50, 100, "All"]]
+        "order": [[ 1, "desc" ]],
+        "lengthMenu": [[25, 50, -1], [25, 50, "All"]]
       } );
     } );
   </script>