consolidated index modules and updated to solr 7.2.0
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release dnet-index-solr-service-2.4.4-schemaFix
[maven-release-plugin] rollback the release of dnet-index-solr-service-2.4.4-schemaFix
bumped version
2.4.X
solr6 branch
branch for solr6
codebase used to migrate to java8 the production system