LUCENE-6004: fix CHANGES entry

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_10@1642646 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-6075: don't overflow int in SimpleRateLimiter

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_10@1642666 13f79535-47bb-0310-9956-ffa450edef68