Updated openstack/openstack
Project: openstack/taskflow  dac3f9b31429a85a5beff435381f63ff1630cabe

Relax the graph flow symbol constraints

In order to make it possible to have a symbol
tree we need to relax the constraints that are
being imposed by the graph flow.

Part of blueprint taskflow-improved-scoping

Change-Id: I2e14de2131c3ba4e3e4eb3108477583d0f02dae2