Open Stack

The docs team is now ready to retire the icehouse branch of the 
training-guides project, could an infra root close the branch, please?

I've send also a change to remove support for it from project-config:
https://review.openstack.org/209776

Thanks,
Andreas
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  Andreas Jaeger aj@{suse.com,opensuse.org} Twitter/Identica: jaegerandi
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