"small changes"

- remove http only in login.html
- extract PeeringManager into separate file
- add "progress meter" for "used" to "available" peerings

web/frontend/index.html

@@ -16,7 +16,7 @@
       <td>{{node}}</td>
       <td>{{config["nodes"][node]["country"]}}</td>
       <td>{{config["nodes"][node]["city"]}}</td>
-      <td></td>
+      <td><progress value="{{peerings.amount_by_node(node)}}" max="{{config['nodes'][node]['capacity']}}"></progress></td>
       <td><a href="peerings/new?node={{node}}">peer</a></td>
     </tr>
     {% endfor %}