TAJO-1054: Wrong comment in ByteUtils.splitWorker(). (Jongyoung Park via jinho)
TAJO-1046: Remove hadoop native dependency of pullserver. (jinho)

Closes #143
TAJO-1016: Refactor worker rpc information. (jinho)

Closes #125
TAJO-1050: RPC client does not retry during connecting. (Jihun Kang via jinho)
TAJO-1056: Wrong resource release or wrong task scheduling. (jinho)

Closes #151
TAJO-1047: DefaultTaskScheduler:allocateRackTask is failed occasionally on JDK 1.7. (jinho)

Closes #144
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/tajo into block_iteration
TAJO-1049: Remove the parallel degree limit up to the maximum cluster capacity.

Closes #147
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/tajo into block_iteration