Johannes Stein

Exact error message to follow

This pull request allows for custom components fixing #9. It also includes a fix for #12.

Object.deliverChangeRecords not available

12

To deliver the change records, this polyfill uses the following API: ``` javascript var obj = {}; var changeHandler = function(changes) { console.log(changes); }; Object.observe(obj, changeHandler); obj.test = 5; Object.getNotifier(obj).deliverChangeRecords();...

Add some unit tests for the command-line interface itself to ckeck if options are passed correctly.

Only display them as a single message or with an indicator afterwards.

I'm very much a fan of AVA and once #5 is done, I feel the tests should use AVA instead.

Refactor to use ES2015

Add an option to generate a `.min.js` build for the UMD version.