edx/edx-platform — pull request #4196 by olmar (2014-06-24 15:45:15+00:00)
Title: Redirect Chinese students to a Chinese CDN for video.

@clytwynec
@Lyla-Fischer

Please ask devops to add this to edxapp/lms.env.json:
```json
"VIDEO_CDN_URL": {
"CN": "http://api.xuetangx.com/edx/video?s3_url="
}
```