mozilla/vtt.js — pull request #315 by RickEyre (2014-04-23 17:56:58+00:00)
Title: Use grunt mocha test to run mocha.

This cleans up the package.json script a bit. Grunt-mocha-tests
automatically does things for us like catching assertions that
would normally be uncaught so that our test runner doesn't
explode at any point.