PHRAS-3888 release 4.1.8-rc5 #258

Job	Run time
build phraseanet-worker / build	3m 52s
build phraseanet-setup / build	3m 46s
build phraseanet-nginx / build	2m 54s
build phraseanet-db / build	36s
build phraseanet-elasticsearch / build	27s
build phraseanet-fpm / build	3m 44s
unit test	3m 27s
	18m 46s

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