In keystone version 3.5, "type" optional attribute has been added
to list credentials. This patch add "user_id" and "type" optional
parameter in openstack client.
Change-Id: Ia09ee7c39204fdff2dfd7b9b606d888d007caac5
Move existing content around based on the doc-migration specification.
Replace :doc: markup with :ref: to have sphinx keep track of where the
files move and generate valid hyperlinks.
Add a few toctrees and index pages for the new directories.
Depends-On: Ia750cb049c0f53a234ea70ce1f2bbbb7a2aa9454
Change-Id: I253ee8f89d3ec40e39310c18bb87ed1d3d5de330
Signed-off-by: Doug Hellmann <doug@doughellmann.com>