Fix comments to use 'local.conf' instead of 'localrc'
Fix comments to use 'local.conf' instead of 'localrc'

Instead of 'localrc', 'local.conf' should be used.
Example codes to enable neutron also should follow local.conf syntax.

Change-Id: I4f4c03fdbf0f612e5b518177b29669fb202d9f7a
Closes-Bug: #1407391

mmasaki/devstack,sequenceiq/devstack,dirkmueller/devstack,costingalan/devstack,kplus/devstack-moonshot,openstack-dev/devstack,parul24/devstack,noironetworks/devstack,nawawi/openstack,sequenceiq/devstack,mc2014/devstack,NaokiMiyata/devstack,varunarya10/devstack,bljgaurav/openstack-test,herrsechs/devstack,TwinkleChawla/devstack,pczerkas/devstack,vsham20/devstack,dtroyer/devstack,liuquansheng47/devstack,wenhuizhang/devstack,HPCHub/devstack,ozamiatin/devstack,group-policy/devstack,CloudServer/devstack,kplus/devstack-moonshot,wenhuizhang/devstack,liuquansheng47/devstack,bigswitch/devstack,pczerkas/devstack,BSJAIN92/OpenStack,sc68cal/devstack,dirkmueller/devstack,j4/devstack,nuxeh/devstack,j4/devstack,avvocatodemarchis/devstack,Mahito/devstack,mmasaki/devstack,bswartz/devstack,costingalan/devstack,pacinete/devstack,promptworks/devstack,pacinete/devstack,eharney/devstack,neerja28/Devstack_GlusterFS,LoHChina/devstack,affo/devstack,TwinkleChawla/devstack,LoHChina/devstack,prithivm/branch01,bq-xiao/devstack,olivierlemasle/devstack,mssumanth/devstack,openstack-dev/devstack,andrewrothstein/devstack,mc2014/devstack,BSJAIN92/OpenStack,mssumanth/devstack,vsham20/devstack,dtroyer/devstack,thomasem/devstack,samgoon/devstack,atulpatil301/devstack,varunarya10/devstack,andrewrothstein/devstack,richliu/devstack,vishnugonela/devstack,avvocatodemarchis/devstack,bigswitch/devstack,atulpatil301/devstack,flavio-fernandes/devstack,rushiagr/devstack,richliu/devstack,rushiagr/devstack,sc68cal/devstack,bq-xiao/devstack,NaokiMiyata/devstack,samgoon/devstack,bswartz/devstack,bljgaurav/openstack-test,olivierlemasle/devstack,Mahito/devstack,thomasem/devstack,pombredanne/devstack,eharney/devstack,parul24/devstack,CloudServer/devstack,flavio-fernandes/devstack,pombredanne/devstack,prithivm/branch01,affo/devstack,neerja28/Devstack_GlusterFS,herrsechs/devstack,noironetworks/devstack,HPCHub/devstack,ozamiatin/devstack,upadhyay-prashant/devstack,promptworks/devstack,nawawi/openstack,vishnugonela/devstack,nuxeh/devstack,group-policy/devstack,upadhyay-prashant/devstack