This feature will allow image owners to share images across multiple
tenants/projects without explicitly creating members individually
through the glance API V2. “Community images” will not appear iu
user's default image listings
Change-Id: Ic02bf44cca5d6d793d68a8737d3cfe3f44407d88
Closes-Bug: #1626837
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>