update Simplified Chinese (zh_CN) translation
update Simplified Chinese (zh_CN) translation

gcampax/cogl,Distrotech/cogl,Distrotech/cogl,djdeath/cogl,gcampax/cogl,djdeath/cogl-android,Distrotech/cogl,Distrotech/cogl,djdeath/cogl-android,gcampax/cogl,djdeath/cogl-android,djdeath/cogl,gcampax/cogl,djdeath/cogl