[maven-release-plugin] copy for tag dnet-download-plugins-2.1.20
[maven-release-plugin] copy for tag dnet-download-plugins-2.1.19
[maven-release-plugin] copy for tag dnet-download-plugins-2.1.18
[maven-release-plugin] copy for tag dnet-download-plugins-2.1.17
[maven-release-plugin] copy for tag dnet-download-plugins-2.1.16
codebase used to migrate to java8 the production system