pre-QUnit 1.15

Hey,

I need some help to allow the implementation of new QUnit to be release as 1.15

We refactored the HTML Reporter and with that we brought the equivalent of the deprecated QUnit.reset() to the QUnit.testDone handler on the html reporter.

I'm facing some problems when you need to do some events cleanup on `#qunit-fixture`.

On @9a2b345 I tried to improve it's usage and even trying to re-use QUnit.reset (which is deprecated) I got some failing tests on `tests/unit/tooltip/tooltip.html` (before and after this commit).

I'm not sure how to solve this and I need some help from you.

Thanks!