discourse/discourse — pull request #991 by chrishunt (2013-06-08 17:34:27+00:00)
Title: Add onebox for GitHub pull requests

I'm tired of seeing my pr links on meta without the fancy box :frowning:

This adds a onebox for GitHub pull request links.

It turns this:

`https://github.com/discourse/discourse/pull/988`

Into this:

![pr-onebox](https://f.cloud.github.com/assets/65323/627879/875b1c90-d061-11e2-8642-ddcaeb86282f.png)