Fixes bug 885087: /etc/nova/nova.conf
Fixes bug 885087: /etc/nova/nova.conf

(This commit didn't get backported to redux, so needs to be re-applied now.)

Move Nova config files (nova.conf, api-paste.ini) to /etc/nova
so all binaries can find them, particularly /usr/local/bin/nova-manage.

Change-Id: I002a9ae1c601894c943a49057cdcf0ab9e9d6c61

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