LUCENE-5257: merge CHANGES.txt entry with LUCENE-5249's entry
LUCENE-5257: merge CHANGES.txt entry with LUCENE-5249's entry

git-svn-id: 308d55f399f3bd9aa0560a10e81a003040006c48@1529249 13f79535-47bb-0310-9956-ffa450edef68

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