Update futurist to 1.4.0
Update futurist to 1.4.0

Change-Id: I4d50b6cb62a8f2e77e9925f457f94c4dae227d26
Depends-on: Id4e91b0e6f60f37a79bfc3ebddd24659b5555e77

openstack/rpm-packaging,openstack/rpm-packaging