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.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1461161 13f79535-47bb-0310-9956-ffa450edef68