Protected properties rules roles check is case-sensitive

[Ala Rezmerita]

Hi ,
when glance image properties are protected, the check that handles the match between the user roles and CRUD rules with roles is case-sensitive. The check should be case-insensitive since https://bugs.launchpad.net/glance/+bug/1010519

Example:

I have an image property "operator_property_name":

[operator_property_name]
create: admin, Member
read: admin, Member
update: admin, Member
delete: admin, Member

This gives the user with the role Member the possibility to create/read/update/delete this image property.
However all these operations will fail, because protected properties rules roles check is case-sensitive.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/163548

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/163548
Committed: https://git.openstack.org/cgit/openstack/glance/commit/?id=cfad91bc7c65606e6f1983f798faff517f0f266e
Submitter: Jenkins
Branch: master

commit cfad91bc7c65606e6f1983f798faff517f0f266e
Author: Ala Rezmerita <email address hidden>
Date: Wed Mar 11 18:49:12 2015 +0100

    Make properties roles check case-insensitive

    Glance is case-insensitive when checking roles.
    This patch makes protected properties rules
    roles check also case-insensitive.

    Change-Id: Ib505889e12d0867f43788b815d9cbea18b8f2513
    Closes-Bug: #1430804