Fixed typo in comment

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1529649 13f79535-47bb-0310-9956-ffa450edef68
Removed unused import

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1529651 13f79535-47bb-0310-9956-ffa450edef68
MAHOUT-1296 Deleted empty fpm test package

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1529654 13f79535-47bb-0310-9956-ffa450edef68