Updated maven-install-plugin version from 2.5 to 2.5.1

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1536146 13f79535-47bb-0310-9956-ffa450edef68
MAHOUT-1325 Change hadoop dependent tests to work out of a directory that is not under /tmp (isabel via sslavic)

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1536215 13f79535-47bb-0310-9956-ffa450edef68