Adding jQuery to the ES6/define shims.

What do you guys think about this?

Certainly I don't want to see this shim explode with stuff like Modernizer, Bootstrap, etc. But presently Ember has a dependency on jQuery. Because of that, I think it's pretty safe to expect a majority of apps will need to interact with jQuery at one time or another. Whether via AJAX, Utils, or 3rd party jQuery libraries.