Some "optional" parameters are incorrect for "create a load balancer VIP" call

[BaoLiang Cui]

Networking API v2.0 extensions,Create a load balancer VIP:
http://developer.openstack.org/api-ref-networking-v2-ext.html#createVIP

[Issue]
In "Load-Balancer-as-a-Service (LBaaS) 1.0 (STABLE)" section,
It is wrong about "Optional" infomation of some "Create a load balancer VIP" Request parameters

tenant_id should to be optional.
subnet_id (Optional) should not to be optional.
pool_id (Optional) should not to be optional.

[Diane Fleming (diane-fleming)]

Please do not assign bugs to yourself until someone else has confirmed. Thanks!

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/220917

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/220917
Committed: https://git.openstack.org/cgit/openstack/api-site/commit/?id=f8ca6b5c67f59b8dddcf047ef2819ffd25fc319c
Submitter: Jenkins
Branch: master

commit f8ca6b5c67f59b8dddcf047ef2819ffd25fc319c
Author: BaoLiang Cui <email address hidden>
Date: Mon Sep 7 09:03:50 2015 +0000

    Correct some incorrect "optional" parameters

    Some "optional" parameters are incorrect for
    "create a load balancer VIP" call.
    tenant_id should to be optional.
    subnet_id (Optional) should not to be optional.
    pool_id (Optional) should not to be optional.

    So I Correct this three parameters in common.ent.
    Closes-Bug: #1490820

    Change-Id: I1bab5e2fc7869dfe6348ac455193595a8fee707e