* Components for constructing the new applet popup 3 layers:
* Popup
   * InterfaceGroups (that group like interfaces)
      * InterfaceItem (single interface in a group)
      * ConnectionItem (inactive connections for a group)
   * Auxiliary UI, configure button, flight mode etc

* Add RemoteConnection class to encapsulate connections on the service and save us from doing QVariantMap lookups all the time.

* Add ActiveConnection interface for finding out which connection on which service is active, so it can be displayed on the InterfaceItem.

Applet still displays the old networkmanagerpopup I blogged about, InterfaceGroup is still missing. When that is finished I will rewrite NetworkManagerPopup to use the new components.