response of v3 OS-EC2 API doesn't contain links field

[wanghong]

An example of create API:

{"credential": {"access": "1d3c23ddf17b4a2dbb1702fda6f70fff", "tenant_id": "af893e3fa7e94f38bbbb0103e3a0777b", "secret": "e27ca17c32534c18a5d695f26bd766db", "user_id": "ea8e8e91c7404f9db859730df4374137", "trust_id": null}}

This is because we don't apply wrap_member or wrap_collection on the response of v3 OS-EC2 API.
https://github.com/openstack/keystone/blob/master/keystone/contrib/ec2/controllers.py#L387
https://github.com/openstack/keystone/blob/master/keystone/contrib/ec2/controllers.py#L174

Example of how collections are wrapped in other places:

https://github.com/openstack/keystone/blob/15fb5d68cd871a9d05f3bc332139e808d47af2a8/keystone/catalog/controllers.py#L308

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/151592

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/151592
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=e6c67148feb87e5fe755d8203b62ebd41b6fa3d5
Submitter: Jenkins
Branch: master

commit e6c67148feb87e5fe755d8203b62ebd41b6fa3d5
Author: wanghong <email address hidden>
Date: Fri Jan 30 18:11:27 2015 +0800

    add missing links for v3 OS-EC2 API response

    Change-Id: Ic83109f65fc7ba077a74865a7b5c630a01203edb
    Closes-Bug: #1416303