nova 15.0.7 release

meta:version: 15.0.7
meta:diff-start: -
meta:series: ocata
meta:release-type: release
meta:pypi: no
meta:first: no
meta:release:Author: Matt Riedemann <mriedem.os@gmail.com>
meta:release:Commit: Matt Riedemann <mriedem.os@gmail.com>
meta:release:Change-Id: I2352aacccc6ff9f18853e82c85afd05ffd5834fb
meta:release:Code-Review+2: Sean McGinnis <sean.mcginnis@gmail.com>
meta:release:Code-Review+2: Tony Breeds <tony@bakeyournoodle.com>
meta:release:Code-Review+2: Davanum Srinivas (dims) <davanum@gmail.com>
meta:release:Workflow+1: Davanum Srinivas (dims) <davanum@gmail.com>
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