horizon 18.4.1 release

meta:version: 18.4.1
meta:diff-start: -
meta:series: victoria
meta:release-type: release
meta:pypi: no
meta:first: no
meta:release:Author: manchandavishal <manchandavishal143@gmail.com>
meta:release:Commit: manchandavishal <manchandavishal143@gmail.com>
meta:release:Change-Id: Ifbd68814579ca249d7110625549b298883a745cc
meta:release:Code-Review+1: Ivan Kolodyazhny <e0ne@e0ne.info>
meta:release:Code-Review+2: Sean McGinnis <sean.mcginnis@gmail.com>
meta:release:Workflow+1: Sean McGinnis <sean.mcginnis@gmail.com>