node packages updated

[janKollars]

Hi
This is my first pull request. I hope that I made a useful contribution.
Description: updated all packages

babel-eslint 6.1.2 -> 8.2.1
babel-preset-env 1.6.0 -> 1.6.1
browser-sync 2.18.13 -> 2.23.6
css-loader 0.28.7 -> 0.28.9
eslint 3.19.0 -> 4.17.0
eslint-plugin-import 1.16.0 -> 2.8.0
exports-loader 0.6.4 -> 0.7.0
file-loader 0.11.2 -> 1.1.6
gulp-babel 6.1.2  -> 7.0.1
gulp-flatten 0.3.1  -> 0.4.0
gulp-postcss 6.4.0  -> 7.0.1
gulp-watch 4.3.11 -> 5.0.0
hugo-bin 0.16.0 -> 0.22.0
postcss-cssnext 2.11.0 -> 3.1.0
postcss-import 10.0.0 -> 11.0.0
url-loader 0.5.9 -> 0.6.2
webpack 3.6.0  -> 3.10.0
whatwg-fetch 1.1.1 -> 2.0.3

Build works normally (screenshots attached). Played around with the generator - all changes are processed correctly.
Before:

After:

Drawback: node_modules seems to get bigger considerably (200 MB -> 270 MB)

My quinea pig Susi

[erquhart]

It's super useful, thanks! Surprised all of these updates didn't break anything.

Would you mind running yarn and pushing up the changes to yarn.lock as well?

[janKollars]

Here you go!

[erquhart]

Awesome, looks good!