Rewrite Goals

[paltman]

I want to rewrite this library with the following goals in mind:

• drop requirement on using jQuery (I think all the DOM manipulation can be handled with a little discipline referencing this guide
• drop $.ajax wrapper around XMLHttpRequest for native fetch API which is supported everywhere except IE 11 and Opera mini
• drop polyfills (don't think they are needed at all right now)
• switch to Jasmine and Karma for testing
• rewrite in a way that is more testable. the current method of everything in nested anonymous functions makes things near impossible.

[paltman]

Some sources show a fairly high level of IE 11 usage. So we might need a polyfill of some sort for fetch.