gnocchi: map stable/1.3 to stable/liberty
gnocchi: map stable/1.3 to stable/liberty

Change-Id: I53dd5fd530928969bcb507b4e8efbacdb83f74e2

Tesora/tesora-project-config,openstack-infra/project-config,noorul/os-project-config,openstack-infra/project-config,Tesora/tesora-project-config,dongwenjuan/project-config,noorul/os-project-config,dongwenjuan/project-config