Sync latest importutils from openstack-common.
Sync latest importutils from openstack-common.

This patch pulls in the latest version of importutils from
openstack-common.  It includes a formatting change and one new function:
import_object_ns().

Change-Id: Ifc1533fe1e33a447e4c501d759a6c838133d1063

vmturbo/nova,Yusuke1987/openstack_template,vmturbo/nova,petrutlucian94/nova,luogangyi/bcec-nova,OpenAcademy-OpenStack/nova-scheduler,eharney/nova,DirectXMan12/nova-hacking,BeyondTheClouds/nova,vmturbo/nova,dawnpower/nova,shahar-stratoscale/nova,SUSE-Cloud/nova,Metaswitch/calico-nova,berrange/nova,sridevikoushik31/nova,zhimin711/nova,maelnor/nova,fnordahl/nova,savi-dev/nova,sridevikoushik31/nova,angdraug/nova,JioCloud/nova_test_latest,Francis-Liu/animated-broccoli,luogangyi/bcec-nova,cyx1231st/nova,Triv90/Nova,Yusuke1987/openstack_template,BeyondTheClouds/nova,openstack/nova,openstack/nova,leilihh/novaha,cloudbau/nova,sacharya/nova,rajalokan/nova,klmitch/nova,gooddata/openstack-nova,rickerc/nova_audit,sridevikoushik31/openstack,j-carpentier/nova,aristanetworks/arista-ovs-nova,imsplitbit/nova,virtualopensystems/nova,JioCloud/nova,yosshy/nova,gooddata/openstack-nova,edulramirez/nova,spring-week-topos/nova-week,hanlind/nova,Yuriy-Leonov/nova,mandeepdhami/nova,devendermishrajio/nova,usc-isi/nova,aristanetworks/arista-ovs-nova,mandeepdhami/nova,bgxavier/nova,tianweizhang/nova,barnsnake351/nova,devendermishrajio/nova_test_latest,belmiromoreira/nova,joker946/nova,Tehsmash/nova,mgagne/nova,tanglei528/nova,scripnichenko/nova,NoBodyCam/TftpPxeBootBareMetal,paulmathews/nova,mgagne/nova,whitepages/nova,silenceli/nova,double12gzh/nova,ted-gould/nova,sebrandon1/nova,rahulunair/nova,alvarolopez/nova,tanglei528/nova,isyippee/nova,NeCTAR-RC/nova,JianyuWang/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,gspilio/nova,bigswitch/nova,tianweizhang/nova,houshengbo/nova_vmware_compute_driver,bgxavier/nova,eharney/nova,dstroppa/openstack-smartos-nova-grizzly,shail2810/nova,cloudbase/nova,gspilio/nova,zaina/nova,CEG-FYP-OpenStack/scheduler,cyx1231st/nova,apporc/nova,LoHChina/nova,mmnelemane/nova,devoid/nova,badock/nova,TwinkleChawla/nova,leilihh/nova,Stavitsky/nova,akash1808/nova,qwefi/nova,rrader/nova-docker-plugin,Stavitsky/nova,affo/nova,plumgrid/plumgrid-nova,CiscoSystems/nova,bigswitch/nova,mikalstill/nova,watonyweng/nova,barnsnake351/nova,rickerc/nova_audit,Juniper/nova,mahak/nova,MountainWei/nova,noironetworks/nova,cloudbase/nova-virtualbox,petrutlucian94/nova_dev,yosshy/nova,mikalstill/nova,mahak/nova,akash1808/nova_test_latest,hanlind/nova,yatinkumbhare/openstack-nova,thomasem/nova,virtualopensystems/nova,tealover/nova,gspilio/nova,shahar-stratoscale/nova,rajalokan/nova,cernops/nova,maoy/zknova,sacharya/nova,Triv90/Nova,whitepages/nova,jianghuaw/nova,cloudbase/nova,eonpatapon/nova,isyippee/nova,Francis-Liu/animated-broccoli,alaski/nova,NoBodyCam/TftpPxeBootBareMetal,shootstar/novatest,usc-isi/nova,projectcalico/calico-nova,edulramirez/nova,sebrandon1/nova,belmiromoreira/nova,spring-week-topos/nova-week,vladikr/nova_drafts,rajalokan/nova,ntt-sic/nova,akash1808/nova,NoBodyCam/TftpPxeBootBareMetal,devoid/nova,joker946/nova,mikalstill/nova,bclau/nova,tangfeixiong/nova,zzicewind/nova,adelina-t/nova,zaina/nova,alexandrucoman/vbox-nova-driver,NewpTone/stacklab-nova,eonpatapon/nova,jeffrey4l/nova,savi-dev/nova,silenceli/nova,varunarya10/nova_test_latest,klmitch/nova,jianghuaw/nova,TieWei/nova,sridevikoushik31/nova,sebrandon1/nova,sridevikoushik31/nova,tudorvio/nova,j-carpentier/nova,paulmathews/nova,eayunstack/nova,maheshp/novatest,usc-isi/nova,phenoxim/nova,fajoy/nova,felixma/nova,JioCloud/nova_test_latest,CEG-FYP-OpenStack/scheduler,LoHChina/nova,DirectXMan12/nova-hacking,JianyuWang/nova,qwefi/nova,Tehsmash/nova,dawnpower/nova,houshengbo/nova_vmware_compute_driver,dstroppa/openstack-smartos-nova-grizzly,takeshineshiro/nova,citrix-openstack-build/nova,citrix-openstack-build/nova,cloudbase/nova,orbitfp7/nova,blueboxgroup/nova,fajoy/nova,yrobla/nova,sridevikoushik31/openstack,rahulunair/nova,saleemjaveds/https-github.com-openstack-nova,NeCTAR-RC/nova,ted-gould/nova,BeyondTheClouds/nova,phenoxim/nova,savi-dev/nova,iuliat/nova,Yuriy-Leonov/nova,badock/nova,watonyweng/nova,nikesh-mahalka/nova,CiscoSystems/nova,jianghuaw/nova,ruslanloman/nova,berrange/nova,rajalokan/nova,devendermishrajio/nova,cloudbau/nova,rrader/nova-docker-plugin,projectcalico/calico-nova,viggates/nova,cernops/nova,cernops/nova,tudorvio/nova,raildo/nova,fnordahl/nova,alaski/nova,MountainWei/nova,gooddata/openstack-nova,openstack/nova,alexandrucoman/vbox-nova-driver,leilihh/nova,petrutlucian94/nova,hanlind/nova,ruslanloman/nova,dims/nova,imsplitbit/nova,apporc/nova,JioCloud/nova,maheshp/novatest,CCI-MOC/nova,OpenAcademy-OpenStack/nova-scheduler,klmitch/nova,maoy/zknova,affo/nova,maoy/zknova,maelnor/nova,redhat-openstack/nova,Triv90/Nova,CloudServer/nova,angdraug/nova,TieWei/nova,varunarya10/nova_test_latest,CCI-MOC/nova,Juniper/nova,mahak/nova,takeshineshiro/nova,Juniper/nova,ntt-sic/nova,yatinkumbhare/openstack-nova,Metaswitch/calico-nova,NewpTone/stacklab-nova,scripnichenko/nova,ewindisch/nova,tealover/nova,kimjaejoong/nova,adelina-t/nova,vmturbo/nova,DirectXMan12/nova-hacking,leilihh/novaha,bclau/nova,ewindisch/nova,houshengbo/nova_vmware_compute_driver,akash1808/nova_test_latest,NewpTone/stacklab-nova,double12gzh/nova,dims/nova,nikesh-mahalka/nova,CloudServer/nova,yrobla/nova,alvarolopez/nova,vladikr/nova_drafts,saleemjaveds/https-github.com-openstack-nova,yrobla/nova,redhat-openstack/nova,iuliat/nova,plumgrid/plumgrid-nova,Juniper/nova,orbitfp7/nova,tangfeixiong/nova,maheshp/novatest,sridevikoushik31/openstack,viggates/nova,TwinkleChawla/nova,SUSE-Cloud/nova,klmitch/nova,felixma/nova,shail2810/nova,noironetworks/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,thomasem/nova,mmnelemane/nova,kimjaejoong/nova,paulmathews/nova,rahulunair/nova,dstroppa/openstack-smartos-nova-grizzly,devendermishrajio/nova_test_latest,aristanetworks/arista-ovs-nova,fajoy/nova,jianghuaw/nova,zzicewind/nova,shootstar/novatest,gooddata/openstack-nova,blueboxgroup/nova,raildo/nova,petrutlucian94/nova_dev,eayunstack/nova,zhimin711/nova,jeffrey4l/nova,cloudbase/nova-virtualbox