Prevent early auth deny in tempauth when using swift3 middleware.

When tempauth is used together with swift3 and keystone, groups are
empty and tempauth denies the request too early without a chance for
keystone to authenticate the request.

Change-Id: I21d9b22ecbd18a5f1fba901abd94221a332c45ea
Closes-Bug: 1244545
Allow access to the in-memory object server

This will allow functional tests to be used against it, and can then
be used for the storage-policy work as an example diskfile
implementation associated with a storage policy.

Change-Id: I47a88e70cee99225779baaed379b0c5d4c73611a
make test tooling less opinionated

Change-Id: I709afcec998795794a9ef13bbe7493ddd46c59b5
Merge "make test tooling less opinionated"
Merge "Allow access to the in-memory object server"
Merge "Prevent early auth deny in tempauth when using swift3 middleware."
clarify the current state of the DiskFile API

Change-Id: Ia3d62c53d14c9a5efdb9a39b08817320cf331085