MAHOUT-1363: Deleted empty directories left after code was moved to different package

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1545885 13f79535-47bb-0310-9956-ffa450edef68
MAHOUT-1297: Defined svn:ignore for the new module

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1545888 13f79535-47bb-0310-9956-ffa450edef68