updated configuration templates to solr 7.5.0
branch for solr 7.5.0
dnet-index-solr-service-2.4.4-schemaFix
[maven-release-plugin] copy for tag dnet-index-solr-service-2.4.4-schemaFix
2.4.X
[maven-release-plugin] copy for tag dnet-index-solr-service-2.4.3
integrated changes from dnet40: added support for create multiple shards for the same collection on the same solr server
commented out suggester component causing slow startup
codebase used to migrate to java8 the production system