Update stack.sh to track quantum rootwrap
Update stack.sh to track quantum rootwrap

Resubmit of https://review.openstack.org/12822
Fix bugs 1044084 and 1048483

Copy new conf files into /etc at stack time.
iniset the agents' init files to include new rootwrap conf
Launch agents as regular user, not root
Fix service launch of ovs
Correctly handle qemu.conf permissions

Change-Id: Ib6b8a97698df1b816eecc18d1df11267cb027a3d

richliu/devstack,citrix-openstack-build/devstack,NaokiMiyata/devstack,cloudbuilders/devstack,j4/devstack,LoHChina/devstack,ozamiatin/devstack,samgoon/devstack,dirkmueller/devstack,citrix-openstack-build/devstack,Juniper/devstack,kplus/devstack-moonshot,andrewrothstein/devstack,cloudbuilders/devstack,bigswitch/devstack,varunarya10/devstack,promptworks/devstack,NaokiMiyata/devstack,costingalan/devstack,group-policy/devstack,avvocatodemarchis/devstack,BSJAIN92/OpenStack,kplus/devstack-moonshot,CiscoSystems/devstack,richliu/devstack,mc2014/devstack,bswartz/devstack,sstrato/devstack,TwinkleChawla/devstack,vishnugonela/devstack,CloudServer/devstack,williamthegrey/devstack,eharney/devstack,HPCHub/devstack,bigswitch/devstack,neerja28/Devstack_GlusterFS,andrewrothstein/devstack,shootstar/devstacktest,vsham20/devstack,olivierlemasle/devstack,bswartz/devstack,flavio-fernandes/devstack,ozamiatin/devstack,bq-xiao/devstack,LoHChina/devstack,atulpatil301/devstack,CloudServer/devstack,flavio-fernandes/devstack,ewindisch/raspi-devstack,herrsechs/devstack,promptworks/devstack,ewindisch/raspi-devstack,openstack-dev/devstack,nati/devstack_public,samgoon/devstack,HPCHub/devstack,prithivm/branch01,pacinete/devstack,nuxeh/devstack,bljgaurav/openstack-test,nuxeh/devstack,mssumanth/devstack,varunarya10/devstack,j4/devstack,atulpatil301/devstack,liuquansheng47/devstack,deepakselvaraj/devstack,jamielennox/devstack,vishnugonela/devstack,sc68cal/devstack,pczerkas/devstack,inkerra/devstack,JioCloud/devstack,vsham20/devstack,pombredanne/devstack,Millnert/contrail-devstack,olivierlemasle/devstack,ykaneko/devstack,rushiagr/devstack,wenhuizhang/devstack,mmasaki/devstack,prithivm/branch01,upadhyay-prashant/devstack,bljgaurav/openstack-test,liuquansheng47/devstack,dtroyer/devstack,tianweizhang/devstack,pacinete/devstack,nawawi/openstack,sc68cal/devstack,Mahito/devstack,herrsechs/devstack,yamt/devstack,Yuriy-Leonov/devstack,eshnil2000/devstack,bq-xiao/devstack,costingalan/devstack,tianweizhang/devstack,Mahito/devstack,parul24/devstack,virtualopensystems/devstack,openstack-dev/devstack,sequenceiq/devstack,pombredanne/devstack,pczerkas/devstack,BSJAIN92/OpenStack,TwinkleChawla/devstack,mmasaki/devstack,innodee/openstackk,rushiagr/devstack,ykaneko/devstack,upadhyay-prashant/devstack,dtroyer/devstack,avvocatodemarchis/devstack,mc2014/devstack,noironetworks/devstack,nati/devstack_public,parul24/devstack,armando-migliaccio/devstack,sequenceiq/devstack,wenhuizhang/devstack,affo/devstack,noironetworks/devstack,thomasem/devstack,dirkmueller/devstack,neerja28/Devstack_GlusterFS,mssumanth/devstack,nawawi/openstack,group-policy/devstack,thomasem/devstack,eharney/devstack,srics/devstack,affo/devstack