Descriptions of response parameters of "GET /v3/roles" are missing.

[Kouichi Katano]

Use Identity API v3 (CURRENT)

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

Issue: Descriptions of response parameters of "GET /v3/roles" are missing.

In "GET /v3/roles" API, request parameters are documented, but response
parameters are not documented.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/239415

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/239415
Committed: https://git.openstack.org/cgit/openstack/api-site/commit/?id=539f29c786b859effbd24b1c6ba01fa9a2f65ad6
Submitter: Jenkins
Branch: master

commit 539f29c786b859effbd24b1c6ba01fa9a2f65ad6
Author: Kouichi Katano <email address hidden>
Date: Mon Oct 26 20:56:32 2015 +0900

    Add descriptions of response parameters for "GET /v3/roles"

    Add descriptions of response parameters for "List roles" API.

    For details, please see http://developer.openstack.org/api-ref-identity-v3.html#listRoles.

    (df) Added missing update role and show role details calls.

    Change-Id: Ic600f56efeb4532d272b45377545b65192934a16
    Closes-Bug: #1510040