_get_instances() in Admin volume panel is not scoped properly

[David Lyle]

the _get_instances() method only calls server_list for the currently scoped project. Calling this method as is from the Admin dashboard means correlating instances and volumes will fail in most cases, because search_opts does not contain all_tenants=True

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/33893

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/33893
Committed: http://github.com/openstack/horizon/commit/73e62610cf68206929af331dfbfc99e5a240e544
Submitter: Jenkins
Branch: master

commit 73e62610cf68206929af331dfbfc99e5a240e544
Author: David Lyle <email address hidden>
Date: Thu Jun 20 16:08:03 2013 -0600

    Fixing scoping of instances in admin volume view

    Existing code was only getting instances scoped to the user's
    current token. When calling from the admin volumes view, this
    needs to get all instances to correlate volume attachments.

    Changed get_volumes to pass all_tenants=True to be consistent,
    cinder ignores the value anyway and only looks for the all_tenants
    key.

    Fixes: bug #1193002

    Change-Id: I5ed2a63997126911d6657619b062acd2947d06e1