MAHOUT-1411: Random test failures from TDigestTest

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1562146 13f79535-47bb-0310-9956-ffa450edef68
MAHOUT-1364: Changing the Base class to 'BaseDirectory' per fix suggested in LUCENE-5204

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1562293 13f79535-47bb-0310-9956-ffa450edef68
MAHOUT-1364: upgraded to Lucene 4.6.1

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1562302 13f79535-47bb-0310-9956-ffa450edef68
MAHOUT-1364: Removed commented code (from Lucene 2.x)

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1562315 13f79535-47bb-0310-9956-ffa450edef68
NoJira: Fixed the Javvadoc warning on line 102.

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1562317 13f79535-47bb-0310-9956-ffa450edef68
[maven-release-plugin] prepare release mahout-0.9

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1562328 13f79535-47bb-0310-9956-ffa450edef68
[maven-release-plugin] prepare for next development iteration

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1562330 13f79535-47bb-0310-9956-ffa450edef68