grizzly: support for Compute API extension os-services

[Anne Gentle]

For https://review.openstack.org/15206

Add REST API support for list/enable/disable nova services

    Implements one workitem of blueprint apis-for-nova-manage

    This adds an extension that provides REST API for list/enable/
    disable nova service. The interface ia accessed via

    GET /v2/{tenant_id}/os-services
    PUT /v2/{tenant_id}/os-services/enable
    PUT /v2/{tenant_id}/os-services/disable

    And the command:nova host-describe have implemented the functionality
    of nova-manage service describe_resource. So we needn't add a REST
    API for it.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/24956

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/24956
Committed: http://github.com/openstack/api-site/commit/c7f112a5f5f19e17d2211b5412311ab99a38bd62
Submitter: Jenkins
Branch: master

commit c7f112a5f5f19e17d2211b5412311ab99a38bd62
Author: ladquin <email address hidden>
Date: Wed Mar 20 22:46:32 2013 -0300

    Add doc support for OS-Services ext v2

    Added doc support to os-services extension v2.
    The ext allows to manage nova services.
    This API has some internal internal inconsistencies that
    prevent it from generating xml samples (they should be
    available in v3).

    Change-Id: I4922daabfbd3454439a07be1c425a52e0fddd821
    Fixes: bug 1078015