commit to test on cluster
commit for map implementation in hive
changes for hive
changes for renaming hive map and string operator to insert operators.
Merge branch 'Hive' of github.com:pm48/Malhar into Hive

Conflicts:
	benchmark/src/main/java/com/datatorrent/benchmark/HiveInsertBenchmarkingApp.java
	benchmark/src/main/java/com/datatorrent/benchmark/HiveMapInsertBenchmarkApp.java
	benchmark/src/test/java/com/datatorrent/benchmark/hive/HiveInsertBenchmarkTest.java
	benchmark/src/test/resources/dt-site-hive.xml
	contrib/src/main/java/com/datatorrent/contrib/hive/AbstractHiveHDFS.java