Updated openstack/openstack
Project: openstack/taskflow  07bdc889ff95a434b41bcfc68caece38ac54b3cd

Add example for pseudo-scoping

Add an example how to use flow factories and prefixing to achieve
effect similar to scoping, but without it.

Change-Id: Ia587ad59f76a0dd477dba79c24e5f86f4b4a34ba