Release notes for the following commits:
$ git log --oneline --no-merges 0.16.0..HEAD
96871b9 Fix tests failing if keystone is running locally
2d67dfa Unify using six.moves.range rename everywhere
af29e0a Show error on trying to upload to non-queued image
ef9fd9f https: Prevent leaking sockets for some operations
01caf4e Strip json and html from error messages
7ee96cb Register our own ConnectionPool without globals
1d82396 Remove graduated gettextutils from openstack/common
a755d1f Workflow documentation is now in infra-manual
Change-Id: Ieed106bff9aa95a7d40b0c39717aa16db4ddbf7e
d3814693a8