Listing objects in a container fails using the CLI if the staticweb middleware
is located before the Keystone middlewares. The staticweb is by default only
enabled for anonymous requests, thus currently all requests will be handled by
the staticweb middleware instead of the proxy server.
Placing the middleware after the authentication middlewares prevents this.
Change-Id: I123959cf2e45143e91a997cda16b8aac50aaea08