is_public should not be a reserved attribute in v2

[Feilong Wang]

Now we're keeping 'is_public' as a reserved attribute in v2 but it shouldn't, given we're using 'visibility' in v2, see https://github.com/openstack/glance/blob/master/glance/api/v2/images.py#L306 and https://github.com/openstack/glance/blob/master/glance/api/v2/images.py#L746

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/154704

[Flavio Percoco (flaper87)]

I think I agree with this.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/154704
Committed: https://git.openstack.org/cgit/openstack/glance/commit/?id=2b34bef7ce87929caa28e586bbaabeaa05d5f8a5
Submitter: Jenkins
Branch: master

commit 2b34bef7ce87929caa28e586bbaabeaa05d5f8a5
Author: Fei Long Wang <email address hidden>
Date: Wed Feb 11 12:14:29 2015 +1300

    Remove is_public from reserved attribute in v2

    In v2, we're using 'visibility' instead of 'is_public',
    so seems there is no good reason to keep 'is_public' as
    a reserved attribute.

    Closes-Bug: #1420501

    Change-Id: Iba677979a2c1e8d45dcdc66394c5c9add51b7289