Separate mahout from HiBench
Delete mahout code
Correct mahout bin path
Enable mahout to run on hadoop1
Add throughput test for concurrent workloads
Modify nutchindexing for concurrent workloads
Separate Hive from HiBench
Improve a little things
Merge branch 'concurrent-run' into yarn
Simplify nutchindexing, and support hadoop1 and cdh5-mr2 now
Improve a little for dependencies
Support hivebench for concurrency