include cancancan and rolify
remove permission model
clean permission model
use rolify to admin?
add change domain
remove unneeded manytomany
repository's create edit view remove
set respositories controller using rolify
fix document role bug
remove uneeded creator_id
wiki 管理
remove tabs index
升级tabs控件
hidden root user delete
remove settings page
admin users manage and fix repository unbind user bug
fix personal page i18n bug
fix rolify with rails 4.1 bug
mail box setting
use story_comment and task_comment instead of just comment