v4.0.0

Dropping Babel

Because sass-vars-loader is a NodeJS only project, there is not enough
justification to use Babel as a compiler. Therefore, starting with this
release, the NPM package will use the source code directly instead of
a compiled version.

The downside: sass-vars-loader now requires NodeJS version 8 or greater.

The benefit: No unnecessary polyfills anymore when using a recent Node version.