SOLR-4570: Move CHANGES entry.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1458116 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4569: Move CHANGES entry.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1458119 13f79535-47bb-0310-9956-ffa450edef68