automatically approve invited users on forum where moderators must approve (keep in mind only moderators can invite)
speed up specs a touch
allow invite controller to accept an email in absence of user (cleans up API)
Update client.zh_CN.yml

banned: "禁止参与讨论" # can't create or reply topics
blocked: "禁止登陆"   # can't login
Merge pull request #1178 from royguo/patch-2

Update client.zh_CN.yml