fix Direct engine moves cluster to "Scaling" twice
fix Direct engine moves cluster to "Scaling" twice

Change-Id: I95edfce5c5b6edf7e127cd9f36784d9594a47a81
Closes-bug: #1399813

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