User module bug fixed
Merge pull request #594 from sexnothing/user

User module bug fixed
Added private message link
Fixed ie css bug and icon html
Merge pull request #596 from adivspan/user-adivspan

Fixed ie css bug and icon html
Refactored user resource loader
Merge branch 'user' of https://github.com/pi-engine/pi into user
Merge pull request #595 from linzongshu/user

Fixed bug that avatar cannot be displayed
Remove user-role link after deletion of a role
Add user validator
Refactored avatar file skeleton to support custom avatars
Activity page bug fixed
Merge pull request #597 from liuchuangww/user

Add user validator
Fixed display name verify rule
Merge pull request #598 from sexnothing/user

Activity page bug fixed
Refactored avatar file skeleton to support custom avatars
Merge pull request #599 from adivspan/user-adivspan

Fixed display name verify rule
Added terms of service link
Merge pull request #600 from adivspan/user-adivspan

Added terms of service link
Fix for custom user i18n