MAHOUT-1290: Issue when running Mahout Recommender Demo

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1507420 13f79535-47bb-0310-9956-ffa450edef68
MAHOUT-1290: Issue when running Mahout Recommender Demo

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1507421 13f79535-47bb-0310-9956-ffa450edef68
MAHOUT-1294: Added ci profile auto-activated on Jenkins builds to cleanup any previously installed artifacts from Jenkins node local repository

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1507425 13f79535-47bb-0310-9956-ffa450edef68