Change tls and sni listener API attributes to ref

[Diane Fleming]

https://review.openstack.org/#/c/216465/

It was originally thought that neutron lbaas would take a uuid for a tls
container that references a container of secrets. This has changed due to the
fact that we will now take a URI for barbican containers, which makes the use
of default_tls_container_id and sni_container_ids inappropriate. This changes
them to be default_tls_container_ref and sni_container_refs.

This patch does not change the db models or data models as that would make this
a much larger patch and due to time would be a lot to merge in by the
Liberty-3. Since V2 API will probably lose the experimental tag this cycle, it
is important to make this change now while it is experimental.
This just changes the API to accept and return these attributes so
whenever the db and data model changes are done, it will not break API
backwards compatibility.

[Atsushi SAKAI (sakaia)]

This issue is already "In progress"
https://review.openstack.org/#/c/216910/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/216910
Committed: https://git.openstack.org/cgit/openstack/api-site/commit/?id=3ea9c2aef33b38c6d32cd665a397299ae3ce8822
Submitter: Jenkins
Branch: master

commit 3ea9c2aef33b38c6d32cd665a397299ae3ce8822
Author: Brandon Logan <email address hidden>
Date: Tue Aug 25 19:18:29 2015 -0500

    Add tls and sni ref attributes to neutron lbaas

    Added documentation and examples for the new attributes of a Listener of the
    Neutron LBaaS V2 API. These attributes have actually been in but have been
    named default_tls_container_id and sni_container_ids. Those were apparently
    never added to these docs, and since we are changing their names, this adds
    their new name of default_tls_container_ref and sni_container_refs.

    Closes-Bug: #1490198

    Change-Id: I9e70a35389705159f7d4054f9c1b7fdaddaaedf2
    Depends-On: Iddc5d95fc6822e19e3166f9a6974dc56edd3193e