New nova jobs: boot_and_delete_multiple_servers
New nova jobs: boot_and_delete_multiple_servers

This is the only one scenario which calls novautils._boot_servers().

Change-Id: Iff15bc72f3b7f8b98ed6eba9692250ad83c11a19

yeming233/rally,eonpatapon/rally,group-policy/rally,openstack/rally,gluke77/rally,aforalee/RRally,afaheem88/rally,gluke77/rally,openstack/rally,amit0701/rally,gluke77/rally,paboldin/rally,cernops/rally,paboldin/rally,amit0701/rally,cernops/rally,redhat-openstack/rally,aforalee/RRally,vganapath/rally,redhat-openstack/rally,group-policy/rally,vganapath/rally,paboldin/rally,yeming233/rally,eayunstack/rally,gluke77/rally,vganapath/rally,aplanas/rally,eayunstack/rally,afaheem88/rally,vganapath/rally,group-policy/rally,amit0701/rally,openstack/rally,eonpatapon/rally,openstack/rally,aplanas/rally,eayunstack/rally