wsgi generating wrong entity_id values when issuing saml assertions.

[Marek Denis]

Attribute issuer should always be set to CONF.saml.idp_entity_id, otherwise entityID from the IdP metadata and the generated assertion can differ and hence make Service Provider reject the assertion.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/124176

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/124176
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=62099029e9c794c5bc4a780fe34fd51ebffee6e1
Submitter: Jenkins
Branch: master

commit 62099029e9c794c5bc4a780fe34fd51ebffee6e1
Author: Marek Denis <email address hidden>
Date: Thu Sep 25 22:17:00 2014 +0200

    Set issuer value to CONF.saml.idp_entity_id.

    When generating SAML assertion Keystone should always set issuer value
    in federation.controllers.Auth.create_saml_assertion() to
    CONF.saml.idp_entity_id.

    Change-Id: If970cdf20cfca8b1dc667eefd030083fdafe9424
    Closes-Bug: #1374033