SOLR-5782: Move CHANGES entry to 4.7.1

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1579308 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5824: Merge up Solr MapReduce contrib code to latest external changes. Includes a few minor bug fixes.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1579318 13f79535-47bb-0310-9956-ffa450edef68
tests: Add SuppressSSL to ChaosMOnkeyNothingIsSafeTest.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1579321 13f79535-47bb-0310-9956-ffa450edef68