Correct fake V3 token responses

A V3 token always contains audit_ids.

The V3 token catalog has region_id in addition to region (region
is deprecated).

Also, the V3 token has password_expires_at in the user.

See http://developer.openstack.org/api-ref/identity/v3/index.html?expanded=password-authentication-with-scoped-authorization-detail

Change-Id: I426cf216cf6a8e348e6f0343e0f71b9766919f60
2 files changed