Updated openstack/openstack
Project: openstack/requirements  bea9b138de4ec29e5ad69eb9a1d695b502979506
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Require openstack-doc-tools 0.8.2

This is the current release and it is needed to fix building with
current infrastructure.

Change-Id: I4e7fa0da6429feb87f61b527c4a6ca5d617b1255