[maven-release-plugin] copy for tag dnet-modular-oai-explorer-ui-2.0.3
[maven-release-plugin] copy for tag dnet-modular-oai-explorer-ui-2.0.2
[maven-release-plugin] copy for tag dnet-modular-oai-explorer-ui-2.0.1
codebase used to migrate to java8 the production system