Code cleaning up
Merge branch 'user' of https://github.com/pi-engine/pi into user
Merge pull request #630 from sexnothing/user

User module bug fixed
Fix validator
Merge pull request #631 from liuchuangww/user

Fix validator
Disable message form
Merge remote-tracking branch 'upstream/user' into user
Update translate file
Merge remote-tracking branch 'upstream/user' into user
Fix register ip
Merge pull request #632 from liuchuangww/user

User
Fix message
Merge pull request #633 from liuchuangww/user

Fix message
Merge remote-tracking branch 'upstream/user' into user
Avatar upload ie bug fixed