Merge pull request #172 from taiwen/user

For nav resource and user synchornization
Merge pull request #174 from taiwen/user

Updated docs
User module in process
Merge pull request #176 from taiwen/user

Fixed bugs for user sync
Merge pull request #175 from liuchuangww/user

User module in process
Module in process
Merge pull request #177 from liuchuangww/user

Module in process
Fixed bugs for user sync