LUCENE-4879: Add randomizedtesting-runner 2.0.9 SHA1 to solr/licenses/; Maven configuration: upgrade randomizedtesting-runner from 2.0.8 to 2.0.9. (merged trunk r1461161)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1461162 13f79535-47bb-0310-9956-ffa450edef68