Improve unit tests for glance.api.v1 module

[Tatyanka]

OpenStack glance has glance.api.v1 module, with non covered parts of code.
Is is not a bug, but would be nice to minimize uncovered parts of code as possible

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/23825

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/23825
Committed: http://github.com/openstack/glance/commit/b892b81a1eded1ccce524a5dbb77f9e694636a9e
Submitter: Jenkins
Branch: master

commit b892b81a1eded1ccce524a5dbb77f9e694636a9e
Author: Tatyana Leontovich <email address hidden>
Date: Thu Mar 7 18:16:05 2013 +0200

    Improve unit tests for glance.api.v1 module

    Add test for glance.api.v1:
    * tests for glance.api.v1.filters.validator
    * tests for glance api add member method
    * tests for glance api replace member method
    * tests for glance api delete member method
    * tests for registry api image details method
    * tests for registry api image delete method
    * tests for registry api add/delete/update/get member methods

    Fixes: bug #1152230
    Change-Id: I79d06b2281ba0c9b8d10b9300fffe6cc3c69c4ee