Downloading from custom repo always downloads electron.zip

[joaomoreno]

The adoption to download ffmpeg and other components was never adopted in:

gulp-atom-electron/src/util.js

Line 10 in 2f2994f

async function getDownloadUrl(repoUrl, { version, platform, arch, token }) {

cc @deepak1556, related to #59

[joaomoreno]

I seriously can't believe how hard it is to get the latest gulp-atom-electron to work on VS Code.

I have adopted the mirror option: d4e0687

But now authentication doesn't seem to work at all, and that's a problem given our private electron repo. Even after setting everything correctly: 9bc9b52

To be continued...