Updating RDO installation documentation
Updating RDO installation documentation

Change-Id: I08e6dd8417cc674bb0f0fa8c78827d93a05e4946
Closes-Bug: #1375278

tellesnobrega/sahara,citrix-openstack-build/sahara,crobby/sahara,esikachev/scenario,keedio/sahara,zhujzhuo/Sahara,crobby/sahara,esikachev/sahara-backup,matips/iosr-2015,zhangjunli177/sahara,egafford/sahara,zhujzhuo/Sahara,tellesnobrega/sahara,ekasitk/sahara,bigfootproject/sahara,matips/iosr-2015,bigfootproject/sahara,ekasitk/sahara,redhat-openstack/sahara,xme1226/sahara,openstack/sahara,henaras/sahara,keedio/sahara,ekasitk/sahara,citrix-openstack-build/sahara,keedio/sahara,xme1226/sahara,redhat-openstack/sahara,esikachev/scenario,zhangjunli177/sahara,esikachev/sahara-backup,redhat-openstack/sahara,esikachev/sahara-backup,zhangjunli177/sahara,xme1226/sahara,mapr/sahara,henaras/sahara,matips/iosr-2015,esikachev/scenario,crobby/sahara,mapr/sahara,henaras/sahara,zhujzhuo/Sahara,bigfootproject/sahara,mapr/sahara,citrix-openstack-build/sahara,egafford/sahara,openstack/sahara