modified listgroup
Add split value implementation done, tested.
Merge remote-tracking branch 'origin/zjw' into v0.2, OK
Merge remote-tracking branch 'origin/zhuqihan' into v0.2, OK
Test user authentication and privilege authorization.
modify objectstore
Merge zjw's branch for nodegroup/globalschema related implementations.
Merge remote-tracking branch 'origin/caoruyi' into macan, OK
add log message
Add sesssion tracking to Thrift server: keep track of the authenticated user info.
rpc node,nodegroup,role,user operate one
rpc node,nodegroup,role,user operate two
Redefine SplitValue: support multiple version of file/part split keys; Add ehcache dependency for datanucleus's level2 cache.
Merge remote-tracking branch 'origin/zhuqihan' into v0.2, OK passed.
Merge remote-tracking branch 'origin/zjw' into v0.2, OK
rpc node,nodegroup,role,user operate three
Fix the authentication open TX nr bug.
Fix the privilege subject DDL defination error.
Merge from caoruyi's branch: remove ql.* from HiveMetaStoreClient.