MAPREDUCE-2521. Create RPM and Debian packages for MapReduce. Changes deployment layout to be consistent across the binary tgz, rpm, and deb. (Eric Yang via omalley) git-svn-id: https://svn.apache.org/repos/asf/hadoop/mapreduce/trunk@1128394 13f79535-47bb-0310-9956-ffa450edef68