[maven-release-plugin] copy for tag dnet-modular-index-service-2.5.5
[maven-release-plugin] copy for tag dnet-modular-index-service-2.5.4
[maven-release-plugin] copy for tag dnet-modular-index-service-2.5.3
[maven-release-plugin] copy for tag dnet-modular-index-service-2.5.1
codebase used to migrate to java8 the production system