Possible ES6-related improvements

[pimotte]

Two small proposals:

• Replace the commonJS export with an ES6 export.
• Replace the require with a dynamic import

Both would modernize the code. The dynamic import is not natively supported in firefox and IE (is supported by Chrome/Safari/Edge/NodeJS), but is supported by Babel, so as I see it this shouldn't cause any problems.

[bkaptijn]

I agree.

[pimotte]

Some initial investigation:

• es6 modules do have native support in node, but it is experimental (both in 10.x and 11.x)
• Using es6 modules with any of the test frameworks (mocha, jasmine) would require using babel, since these don't have native es6 support yet.

[bkaptijn]

true, never ran into problems with nodejs yet though. The API (and most connectors) need to be able to run (and thus tested) both in nodejs, in browsers and react native (even expo.io) so we'd need or be using babel / browserify (or webpack) already.

[pimotte]

Closed with #13