LUCENE-5493: add CHANGES
LUCENE-5493: add CHANGES

git-svn-id: 8c01753b321745201e15b144e79bb77507296676@1574972 13f79535-47bb-0310-9956-ffa450edef68

apache/solr,apache/solr,apache/solr,apache/solr,apache/solr