github/linguist — pull request #910 by abuiles (2014-01-25 16:18:57+00:00)
Title: Add .es6 as JavaScript extension.

Projects based on https://github.com/dockyard/ember-appkit-rails are starting to use `.es6` as a file extension for files using ECMAScript 6.

It would be great to have `.es6` files highlighted. You can see an example file here https://github.com/abuiles/facturas/blob/master/app/models/client.es6