upgrade Apache Lucene/Solr version from 7.4.0 to 7.5.0 #6485
cpoerschke wants to merge
cpoerschke:master-upgrade-to-lucene-solr-7.5.0
into deeplearning4j:master
cpoerschke:master-upgrade-to-lucene-solr-7.5.0
into deeplearning4j:master