Use oslo.log specified method to set log levels
Use oslo.log specified method to set log levels

Use the documented oslo.log [1] method for altering the
default_log_levels to be consistent with TC approved projects.

[1] http://docs.openstack.org/developer/oslo.log/usage.html

Closes-Bug: 1542470
Change-Id: I4999c218e963764bd7c35f813941450b11dc9aa1

klmitch/keystone,himanshu-setia/keystone,rajalokan/keystone,rajalokan/keystone,klmitch/keystone,himanshu-setia/keystone,mahak/keystone,openstack/keystone,ilay09/keystone,dims/keystone,mahak/keystone,openstack/keystone,mahak/keystone,ilay09/keystone,cernops/keystone,openstack/keystone,cernops/keystone,dims/keystone,rajalokan/keystone,ilay09/keystone