Log warnings instead of full exceptions for AMQP reconnects.
Log warnings instead of full exceptions for AMQP reconnects.

Fixes bug 1010147.

Change-Id: I1af7614330307dfdf5c723710334a168bc30b50f

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