more version bumps.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_10@1624269 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5863: smoke tester checks that TestBackwardsCompatibility has coverage for all but the dark-ages releases

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_10@1624271 13f79535-47bb-0310-9956-ffa450edef68