Avoid logging.getChild for python2.6 compatibility
Avoid logging.getChild for python2.6 compatibility

Tweaking common.config setup_logging to avoid using the getChild()
convenience function means we can run on python 2.6, as getChild was
new in python 2.7

Change-Id: I03698ad09eb16d4f1004512d27b049f22b41c22c
Signed-off-by: Steven Hardy <4d1810d1ff6d7f22d774341c4549c02173d2f2ab@redhat.com>

srznew/heat,dragorosson/heat,gonzolino/heat,rickerc/heat_audit,jasondunsmore/heat,openstack/heat,JioCloud/heat,takeshineshiro/heat,pratikmallya/heat,dragorosson/heat,redhat-openstack/heat,rdo-management/heat,dims/heat,rh-s/heat,Triv90/Heat,gonzolino/heat,pratikmallya/heat,pshchelo/heat,noironetworks/heat,miguelgrinberg/heat,noironetworks/heat,dims/heat,NeCTAR-RC/heat,rickerc/heat_audit,JioCloud/heat,steveb/heat,cwolferh/heat-scratch,ntt-sic/heat,miguelgrinberg/heat,redhat-openstack/heat,steveb/heat,Triv90/Heat,NeCTAR-RC/heat,ntt-sic/heat,rdo-management/heat,pshchelo/heat,rh-s/heat,maestro-hybrid-cloud/heat,varunarya10/heat,Triv90/Heat,srznew/heat,varunarya10/heat,takeshineshiro/heat,citrix-openstack-build/heat,cryptickp/heat,cwolferh/heat-scratch,cryptickp/heat,citrix-openstack-build/heat,maestro-hybrid-cloud/heat,jasondunsmore/heat,openstack/heat