Add tox artifacts to .gitignore
Add tox artifacts to .gitignore

 * A tox build creates quantum/versioninfo and setuptools-*.egg,
   and git formerly marked them as untracked rather than ignored.

Change-Id: I50556717a05b2488cff5d9693d46637df608da70

sebrandon1/neutron,blueboxgroup/neutron,bgxavier/neutron,armando-migliaccio/neutron,netscaler/neutron,mmnelemane/neutron,gopal1cloud/neutron,armando-migliaccio/neutron,bgxavier/neutron,cernops/neutron,ykaneko/quantum,gkotton/neutron,zhhf/charging,wolverineav/neutron,oeeagle/quantum,tpaszkowski/quantum,silenci/neutron,yamt/neutron,armando-migliaccio/neutron,CiscoSystems/vespa,suneeth51/neutron,magic0704/neutron,aristanetworks/neutron,ykaneko/quantum,rossella/neutron,mandeepdhami/neutron,takeshineshiro/neutron,beagles/neutron_hacking,vveerava/Openstack,shahbazn/neutron,yamahata/neutron,yamahata/neutron,leeseulstack/openstack,Comcast/neutron,paninetworks/neutron,pnavarro/neutron,noironetworks/neutron,jumpojoy/neutron,neoareslinux/neutron,liqin75/vse-vpnaas-plugin,cloudbase/neutron,vveerava/Openstack,Stavitsky/neutron,projectcalico/calico-neutron,miyakz1192/neutron,vijayendrabvs/hap,Comcast/neutron,gopal1cloud/neutron,rickerc/neutron_audit,rickerc/neutron_audit,leeseulstack/openstack,glove747/liberty-neutron,vivekanand1101/neutron,miyakz1192/neutron,mattt416/neutron,sebrandon1/neutron,yamahata/tacker,yuewko/neutron,yanheven/neutron,skyddv/neutron,noironetworks/neutron,eayunstack/neutron,barnsnake351/neutron,Stavitsky/neutron,zhhf/charging,takeshineshiro/neutron,openstack/neutron,ykaneko/quantum,barnsnake351/neutron,mahak/neutron,watonyweng/neutron,yamt/neutron,JianyuWang/neutron,klmitch/neutron,CiscoSystems/vespa,ntt-sic/neutron,ntt-sic/neutron,mandeepdhami/neutron,apporc/neutron,Comcast/neutron,huntxu/neutron,beagles/neutron_hacking,CiscoSystems/quantum,liqin75/vse-vpnaas-plugin,SmartInfrastructures/neutron,rdo-management/neutron,chitr/neutron,cloudbase/neutron-virtualbox,javaos74/neutron,kaiweifan/neutron,virtualopensystems/neutron,mahak/neutron,jacknjzhou/neutron,igor-toga/local-snat,citrix-openstack-build/neutron,gkotton/neutron,jacknjzhou/neutron,SamYaple/neutron,MaximNevrov/neutron,SmartInfrastructures/neutron,virtualopensystems/neutron,infobloxopen/neutron,rossella/neutron,CiscoSystems/neutron,kaiweifan/vse-lbaas-plugin-poc,adelina-t/neutron,adelina-t/neutron,openstack/neutron,JianyuWang/neutron,SamYaple/neutron,vbannai/neutron,wolverineav/neutron,magic0704/neutron,vbannai/neutron,sajuptpm/neutron-ipam,yuewko/neutron,swdream/neutron,sasukeh/neutron,Brocade-OpenSource/OpenStack-DNRM-Neutron,JioCloud/neutron,Metaswitch/calico-neutron,vveerava/Openstack,ntt-sic/neutron,projectcalico/calico-neutron,silenci/neutron,citrix-openstack-build/neutron,redhat-openstack/neutron,NeCTAR-RC/neutron,blueboxgroup/neutron,CiscoSystems/vespa,Brocade-OpenSource/OpenStack-DNRM-Neutron,vivekanand1101/neutron,cernops/neutron,Juniper/neutron,Juniper/contrail-dev-neutron,mattt416/neutron,asgard-lab/neutron,Juniper/contrail-dev-neutron,jerryz1982/neutron,eonpatapon/neutron,shahbazn/neutron,aristanetworks/neutron,jerryz1982/neutron,vijayendrabvs/ssl-neutron,antonioUnina/neutron,CiscoSystems/neutron,rdo-management/neutron,leeseulstack/openstack,rossella/neutron,yamt/neutron,swdream/neutron,waltBB/neutron_read,rossella/neutron,CiscoSystems/neutron,tpaszkowski/quantum,bigswitch/neutron,paninetworks/neutron,apporc/neutron,chitr/neutron,sajuptpm/neutron-ipam,igor-toga/local-snat,kaiweifan/neutron,mmnelemane/neutron,netscaler/neutron,armando-migliaccio/neutron,virtualopensystems/neutron,Juniper/neutron,huntxu/neutron,kaiweifan/vse-lbaas-plugin-poc,citrix-openstack-build/neutron,alexandrucoman/vbox-neutron-agent,bigswitch/neutron,dims/neutron,skyddv/neutron,tpaszkowski/quantum,yamahata/neutron,ykaneko/neutron,wenhuizhang/neutron,vbannai/neutron,infobloxopen/neutron,alexandrucoman/vbox-neutron-agent,leeseuljeong/leeseulstack_neutron,Juniper/neutron,yamahata/tacker,JioCloud/neutron,openstack/neutron,jumpojoy/neutron,antonioUnina/neutron,sajuptpm/neutron-ipam,liqin75/vse-vpnaas-plugin,ykaneko/neutron,javaos74/neutron,dhanunjaya/neutron,oeeagle/quantum,rickerc/neutron_audit,cloudbase/neutron,ykaneko/neutron,mahak/neutron,cloudbase/neutron-virtualbox,cisco-openstack/neutron,blueboxgroup/neutron,yanheven/neutron,suneeth51/neutron,glove747/liberty-neutron,kaiweifan/vse-lbaas-plugin-poc,CiscoSystems/quantum,zhhf/charging,klmitch/neutron,vijayendrabvs/ssl-neutron,vijayendrabvs/hap,vijayendrabvs/ssl-neutron,waltBB/neutron_read,wenhuizhang/neutron,netscaler/neutron,MaximNevrov/neutron,yamt/neutron,ykaneko/quantum,pnavarro/neutron,gkotton/neutron,Brocade-OpenSource/OpenStack-DNRM-Neutron,liqin75/vse-vpnaas-plugin,kaiweifan/vse-lbaas-plugin-poc,beagles/neutron_hacking,redhat-openstack/neutron,dhanunjaya/neutron,cisco-openstack/neutron,tpaszkowski/quantum,NeCTAR-RC/neutron,neoareslinux/neutron,kaiweifan/neutron,eayunstack/neutron,leeseuljeong/leeseulstack_neutron,Juniper/contrail-dev-neutron,dims/neutron,leeseuljeong/leeseulstack_neutron,watonyweng/neutron,vijayendrabvs/hap,CiscoSystems/quantum,asgard-lab/neutron,Metaswitch/calico-neutron,eonpatapon/neutron,sasukeh/neutron,yamahata/tacker