Dan Prince 4d41027d21 Glance cache updates to support Keystone Essex.
Glance caching updates to support keystone service tenants:

 * Update glance-cache-manage so that it supports the same style OS_
  environment variables and CLI options for auth that bin/glance does.

 * Updates registry/client so that it supports Keystone KSL style
  service tenants. As services no longer use admin_tokens this is
  a requirement to be able to use caching w/ KSL.

Fixes LP Bug #949486.

Change-Id: I8d0e56a9ec0d20ef56ed2ce8b860d987ae159e01
2012-03-09 17:50:25 -05:00
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