dart-lang/chromedeveditor — pull request #3774 by ussuri (2014-11-28 02:58:14+00:00)
Title: Ignore vendor libs in GitHub language stats + specify language for custom file extensions

cc: @devoncarew

See the [Overrides](https://github.com/github/linguist#overrides) instructions of the `Linguist` library, which is used by GitHub to tally the language statistics for a project.

I'll merge and check whether it works.