Merge remote-tracking branch 'origin/v0.2' into zhaoyang
modify msg add table,db info about a file
fix ObjectStore
modify and add msg:splitkey,partition
modify some msg
merge with zqh the first time
add msg for grant privilege,modify msg for split key
modify alterTableFileSplitedBy to solve subsplitedby data lost
modify revoke
merge with zqh
modify show index to add show index properties
Merge remote-tracking branch 'origin/zhaoyang' into zhuqihan