MAHOUT-944: progress up to main compiling except for the file name filter.  haven't run tests - removed duplicate Lucene 4.3 detection, wondering if its even required here given that trunk/pom.xml already has it.

git-svn-id: https://svn.apache.org/repos/asf/mahout/trunk@1490453 13f79535-47bb-0310-9956-ffa450edef68