User keypair added to cluster object.
User keypair added to cluster object.

Change-Id: I300bf0687a829abb06c2bcf33a6950f6f4e71fc2

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