Update example local_conf
Update example local_conf

This patch updates the example local_conf to use devstacks plugin
system. Also some minor formatting changes.

Change-Id: Idcfa7cbadbbbfbf9e7d6977a6320b68c9020a83c
Closes-Bug: 1473073

openstack/horizon,Mirantis/mos-horizon,wolverineav/horizon,philoniare/horizon,davidcusatis/horizon,bac/horizon,bac/horizon,Mirantis/mos-horizon,saydulk/horizon,Dark-Hacker/horizon,doug-fish/horizon,damien-dg/horizon,wolverineav/horizon,django-leonardo/horizon,watonyweng/horizon,anthonydillon/horizon,Mirantis/mos-horizon,damien-dg/horizon,Metaswitch/horizon,coreycb/horizon,tqtran7/horizon,idjaw/horizon,davidcusatis/horizon,takeshineshiro/horizon,django-leonardo/horizon,redhat-cip/horizon,anthonydillon/horizon,davidcusatis/horizon,karthik-suresh/horizon,mdavid/horizon,dan1/horizon-proto,henaras/horizon,redhat-openstack/horizon,django-leonardo/horizon,maestro-hybrid-cloud/horizon,dan1/horizon-x509,davidcusatis/horizon,Dark-Hacker/horizon,coreycb/horizon,sandvine/horizon,Tesora/tesora-horizon,vladryk/horizon,damien-dg/horizon,j4/horizon,idjaw/horizon,wolverineav/horizon,philoniare/horizon,philoniare/horizon,endorphinl/horizon-fork,philoniare/horizon,vladryk/horizon,xinwu/horizon,gerrive/horizon,dan1/horizon-x509,Tesora/tesora-horizon,anthonydillon/horizon,dan1/horizon-proto,maestro-hybrid-cloud/horizon,BiznetGIO/horizon,doug-fish/horizon,karthik-suresh/horizon,henaras/horizon,Tesora/tesora-horizon,redhat-cip/horizon,gerrive/horizon,endorphinl/horizon-fork,gerrive/horizon,NeCTAR-RC/horizon,idjaw/horizon,noironetworks/horizon,yeming233/horizon,xinwu/horizon,redhat-openstack/horizon,henaras/horizon,watonyweng/horizon,coreycb/horizon,redhat-openstack/horizon,takeshineshiro/horizon,karthik-suresh/horizon,yeming233/horizon,redhat-cip/horizon,karthik-suresh/horizon,bigswitch/horizon,watonyweng/horizon,yeming233/horizon,redhat-openstack/horizon,vladryk/horizon,BiznetGIO/horizon,mdavid/horizon,newrocknj/horizon,FNST-OpenStack/horizon,j4/horizon,newrocknj/horizon,NeCTAR-RC/horizon,Tesora/tesora-horizon,ChameleonCloud/horizon,NeCTAR-RC/horizon,FNST-OpenStack/horizon,yeming233/horizon,bigswitch/horizon,BiznetGIO/horizon,coreycb/horizon,Metaswitch/horizon,sandvine/horizon,openstack/horizon,bac/horizon,redhat-cip/horizon,bigswitch/horizon,Dark-Hacker/horizon,ChameleonCloud/horizon,anthonydillon/horizon,saydulk/horizon,ChameleonCloud/horizon,takeshineshiro/horizon,endorphinl/horizon,maestro-hybrid-cloud/horizon,gerrive/horizon,FNST-OpenStack/horizon,endorphinl/horizon,tqtran7/horizon,ChameleonCloud/horizon,openstack/horizon,BiznetGIO/horizon,xinwu/horizon,watonyweng/horizon,j4/horizon,henaras/horizon,noironetworks/horizon,endorphinl/horizon,tqtran7/horizon,mdavid/horizon,newrocknj/horizon,xinwu/horizon,Metaswitch/horizon,openstack/horizon,takeshineshiro/horizon,NeCTAR-RC/horizon,endorphinl/horizon,maestro-hybrid-cloud/horizon,damien-dg/horizon,bigswitch/horizon,bac/horizon,idjaw/horizon,Mirantis/mos-horizon,tqtran7/horizon,j4/horizon,dan1/horizon-x509,sandvine/horizon,saydulk/horizon,vladryk/horizon,django-leonardo/horizon,saydulk/horizon,noironetworks/horizon,dan1/horizon-proto,dan1/horizon-proto,doug-fish/horizon,Metaswitch/horizon,mdavid/horizon,endorphinl/horizon-fork,doug-fish/horizon,wolverineav/horizon,noironetworks/horizon,FNST-OpenStack/horizon,endorphinl/horizon-fork,newrocknj/horizon,sandvine/horizon,dan1/horizon-x509,Dark-Hacker/horizon