Merge remote-tracking branch 'origin/v0.2' into zjw
add  schema /table /nodegroup service and DDL definition
add MetaUtil
add create table rpc
modified rpc interface,add service to hivemetastore
add create table like schema/ like table / create scheam and so on.
add 4 desc
add/drop/modify/show nodeGroup
merge zhuqihan
test parser done
Antlr code too large bug fixed,by spliting HiveParser into multifiles.
add mscomplie.jar
modified msCompile.jar,compliance with parserDriver
modified listgroup
modify nodeGroup
add showNodeGroup method
add log message
add/drop/show nodeGroupAssignment
rpc node,nodegroup,role,user operate one
add/drop/show role and user