PHRAS-3416 phraseanet localization (#4415) #520

Job	Run time
build phraseanet-db / build	20s
build phraseanet-elasticsearch / build	23s
build phraseanet-nginx / build	35s
build phraseanet-fpm / build	33s
build phraseanet-worker / build	40s
build phraseanet-setup / build	28s
unit test	10m 18s
	13m 17s

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