Keystone V3 : List groups API. Same group id exists.

[Hiroyuki Inada]

URL：http://developer.openstack.org/api-ref-identity-v3.html#listGroups

The response sample has same group id.
The group id should be unique value.

{
    "groups": [
        {
            "description": "Developers cleared for work on all general projects",
            "domain_id": "161718",
            "id": "101112",
            "links": {
                "self": "http://identity:35357/v3/groups/101112"
            },
            "name": "Developers"
        },
        {
            "description": "Developers cleared for work on secret projects",
            "domain_id": "161718",
            "id": "101112",
            "links": {
                "self": "http://identity:35357/v3/groups/101112"
            },
            "name": "Secure Developers"
        },
        {
            "description": "Testers cleared for work on all general projects",
            "domain_id": "161718",
            "id": "101112",
            "links": {
                "self": "http://identity:35357/v3/groups/101112"
            },
            "name": "Testers"
        }
    ],
    "links": {
        "self": "http://identity:35357/v3/groups",
        "previous": null,
        "next": null
    }
}

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/216069

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/216069
Committed: https://git.openstack.org/cgit/openstack/api-site/commit/?id=c89e1e4a55aa0bf94b98e63296652423aa58e00d
Submitter: Jenkins
Branch: master

commit c89e1e4a55aa0bf94b98e63296652423aa58e00d
Author: Diane Fleming <email address hidden>
Date: Sun Aug 23 20:01:18 2015 -0500

    Update list responses to show different ids for different items

    Change-Id: Ica492254981b2f66f8a277adbb7d7044d985a5b5
    Closes-Bug: #1486814