heat 7.0.0 release

meta:version: 7.0.0
meta:diff-start: 6.0.0.0rc1
meta:series: newton
meta:release-type: release
meta:announce: openstack-announce@lists.openstack.org
meta:pypi: no
meta:first: yes
meta:release:Author: Doug Hellmann <doug@doughellmann.com>
meta:release:Commit: Doug Hellmann <doug@doughellmann.com>
meta:release:Change-Id: I74b66ffd484f2f3a2b84c39e62bcb718cef7b906
meta:release:Code-Review+1: Ian Cordasco <sigmavirus24@gmail.com>
meta:release:Code-Review+1: Sean McGinnis <sean.mcginnis@gmail.com>
meta:release:Code-Review+1: Vitaly Gridnev <vgridnev@mirantis.com>
meta:release:Code-Review+1: Rob Cresswell <robert.cresswell@outlook.com>
meta:release:Code-Review+1: Steve Martinelli <s.martinelli@gmail.com>
meta:release:Code-Review+1: Steve McLellan <steven.j.mclellan@gmail.com>
meta:release:Code-Review+1: Richard Jones <r1chardj0n3s@gmail.com>
meta:release:Code-Review+2: Davanum Srinivas (dims) <davanum@gmail.com>
meta:release:Code-Review+2: Thierry Carrez <thierry@openstack.org>
meta:release:Code-Review+1: Emilien Macchi <emilien@redhat.com>
meta:release:Code-Review+1: Julien Danjou <julien@danjou.info>
meta:release:Code-Review+1: amrith <amrith@tesora.com>
meta:release:Code-Review+1: Graham Hayes <graham.hayes@hpe.com>
meta:release:Code-Review+1: Jim Rollenhagen <jim@jimrollenhagen.com>
meta:release:Code-Review+2: Doug Hellmann <doug@doughellmann.com>
meta:release:Workflow+1: Doug Hellmann <doug@doughellmann.com>
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