Merge pull request #2 from dianping/cosmos-hadoop-0.9.0

Cosmos hadoop 0.9.0
add username info in cmdlog
Merge pull request #3 from dianping/cosmos-hadoop-0.9.0

Cosmos hadoop 0.9.0
Merge pull request #18 from zhuguangbin/cosmos-hadoop-0.9.0

Cosmos hadoop 0.9.0