jquery/qunit — pull request #653 by JamesMGreene (2014-09-04 17:15:05+00:00)
Title: Async: Implement new `assert.async` mechanism

Fixes #534.

**Typical Usage Example:**

```js
QUnit.test( "x", function( assert ) {
assert.expect( 1 );
var done = assert.sync();
setTimeout(function() {
assert.ok( true );
done();
}, 250);
});
```

This PR should now be merged before #634 (which I will then rebase).