user join selection
user join selection
Completed setting avatar
user join selection
Add robot.txt
Merge pull request #238 from linzongshu/user

Completed setting avatar
Merge pull request #239 from voltan/develop

Add robots.txt
Merge branch 'develop' into user
Merge branch 'user' of https://github.com/pi-engine/pi into user
Changed user profile data schema
Updated sql schema for user field
User join selection