The name of the default domain in keystone is 'Default', not 'default',
which is its ID. If a user copy and pastes the user_domain_name and
project_domain_name settings from example [filter:authtoken] section
in the install guide, the first time they run 'swift stat' they will
meet a 401 error because keystone is trying to look up domains by name
rather than ID. This patch corrects the docs so that they are
copy-and-paste-proof, and also updates the keystone user creation
example to demonstrate the correct domain ID.
Change-Id: Ic595c2923b71d1c2ff2b4c9a773ea7742fdd029b
93ca16c558