Temporary quick and dirty hack in some xtrace logging in the job
Removed superfluous logging statement
Added unimplemented interface methods
Added a few logging statements for when services shut down
Conflicts:

	hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/MRAppMaster.java