Updated openstack/openstack
Project: openstack/taskflow  490c65767c0621219e06234d0eb72e4f7c17f7e3

Fix traces left in zookeeper

We currently are leaving the root node in zookeeper
whenever this test is ran, we should instead be removing
the full directory and any children to avoid leaving
test data behind in zookeeper (aka, cleanup our dirty
laundry).

Fixes bug 1330807

Change-Id: I56d9dabd9926463506e1710ddf0a6c4831d5dc57