SOLR-4578: Move CHANGES entry.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1458100 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4574:  Move CHANGES entry.
SOLR-4576:  Move CHANGES entry.
SOLR-4577:  Move CHANGES entry.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1458104 13f79535-47bb-0310-9956-ffa450edef68