Glance registry v2 rpc api fails to register when use_tpool configuration is true

[Sridevi Koushik]

The rpc api controller registers the db_api methods.
But with this conf enabled, the wrapper's methods are used which would lead to failures.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/46279

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/46279
Committed: http://github.com/openstack/glance/commit/52ab24bbac04182ae171432f28e47f336259f954
Submitter: Jenkins
Branch: master

commit 52ab24bbac04182ae171432f28e47f336259f954
Author: sridevik <email address hidden>
Date: Thu Sep 12 08:43:29 2013 -0500

    V2 RpcApi should register when db pool is enabled

    The rpc api controller registers the public methods of db_api
    But, use_tpool is True, the thread pool wrapper's methods are
    used which would lead to failures.

    Fixes Bug #1221037

    Change-Id: Iaba10178c7da1548257e2180658c2dc8ba3e048b