Clarify staticweb configuration with keystone.

Since staticweb works with anonymous requests by default, explictly
mention delay_auth_decision for the authtoken middleware in
/etc/swift/proxy-server.conf.

Change-Id: I4879884b22224843cf9d4a50ba3359fac36957dc
Merge "Clarify staticweb configuration with keystone."
added a couple of java libraries to associated projects

Change-Id: I7a554af509e8d9743a8416a051845c266e1fb9f6
Add libcloud to associated_projects.

Change-Id: I8778bbecc7ae5852cf789ae6b71191004f69861f