Functions unification and fix babel transpile

[AlikDex]

[inexorabletash]

Hmmm... the use of self is fine in browsers (which is what I mostly care about) but in Node environments it won't be present and some folks do use it there and complain...

[Mouvedia]

If you wanna pass a global root here's the right argument :

(function () {
  try {
    return Function('return this')() || (42, eval)('this');
  } catch (e) {
    return self;
  }
})()