add an AMD/require support to the jquery plugin

I wasn't able to figure out how to get the testrunner going, but in playing around with this version, it looks fine by me. @rnicholus, wanna take a look?

(see https://github.com/umdjs/umd/blob/master/jqueryPlugin.js for source, and umdjs/umd#11 for a potential pitfall [not likely huge, but a caveat to note])

I'll look into exporting the `qq` object tomorrow when I can.