replace 'promise' module by native node Promise()

[vankasteelj]

it was actually really simple as you didn't use anything else than new Promise((resolve, reject) => {})

[vankasteelj]

there are still lots of .bind(this) you could probably remove as you use arrow functions, but I don't know if that was intentionnal (not the same this)

[j-holub]

Yep you're right about the bind thing. When I wrote the module I didn't know of the arrow functions yet. In Ver2 I should've removed most of the bind already and replaced it with the arrow functions.

[vankasteelj]

take on those var while you're at it 👍

[j-holub]

Yep had that in my mind for a long time now, too ;) Already removed some on go