Make libvirt snapshotting work with images that don't have an 'architecture' property.
Make libvirt snapshotting work with images that don't have an 'architecture' property.

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