Reset migrating task state for more Exceptions
Reset migrating task state for more Exceptions

There are a number of exceptions that can occur during pre
live-migration checks, and they should reset the task state to None when
they occur since they prevent the migration from beginning.  This adds
two more exceptions to the list of exceptions that just need to reset
the task state rather than set the instance to error.

Bug 1100462

Change-Id: I95e09f49908fbc3a79f5d2eb490d5a0b3296a6ed

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