Feature/vueconfig

[taxilian]

I wanted to use this with vue.config.js which wraps webpack; it has an option transpileDependencies which is just an array of node_modules which should be processed with babel-loader, so I added an option to are-you-es5 to output a simple array of module names which can be used with it.

While I was in there I made it send log messages to stderr; that way you can do e.g.:

npx are-you-es5 check -r /path/to/project > regex.txt

and it will show you the log messages, but send the usable regular expression to the file.

[obahareth]

Hey @taxilian, sorry for the delay in checking this. This definitely seems like a valuable feature, thanks for your contributions!

Do you think you could fix the CI issues and perhaps also update the README?