Pool Manager Needs Better Logging

[Ron Rickard]

Pool Manager needs better logging to help users understand what it is doing.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/145957

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/145957
Committed: https://git.openstack.org/cgit/openstack/designate/commit/?id=76d5e1d85cc5d52dc5681722c4886a7b5c5b647d
Submitter: Jenkins
Branch: master

commit 76d5e1d85cc5d52dc5681722c4886a7b5c5b647d
Author: rjrjr <email address hidden>
Date: Thu Jan 8 15:48:44 2015 -0700

    Better Logging for Pool Manager

    - Added comprehensive logs to Pool Manager to assist users.
    - Additionally, enhanced logs for components calling Pool Manager.

    NOTE: This does not address logging pertaining to the Pool Manager cache.
    Since the cache is being reworked, logging for the cache will be addressed
    in that patch.

    Change-Id: I243f4f4eec08b20056cd09ec562d70874ed5ae16
    Closes-Bug: 1408200