Converts all tables and connections to UTF8.
Converts all tables and connections to UTF8.

This is https://review.openstack.org/4221 resurrected as the original
was auto-abandoned.

Nova database is handled in db migrations; this adds the nova.conf
change noted by Naveed Massjouni in the original proposal.

Connections to quantum and melange DB changed to utf8

References bug 933208.

Change-Id: Ifc4e5cd71cafb719da62214aafc394563ed1aa29

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