Updating Yarn dependencies, making build process work again

[bobdenotter]

Some housekeeping on the Yarn / Encore build process:

• Updated symfony/encore to 0.20.1 from 0.9.1
• Update a few other deps
• Build process is now working again
• Changed file naming strategy

Note: I replaced this

    .enableVersioning(false)

with this:

    .configureFilenames({
        js: '[name].js',
        images: 'images/[name].[ext]',
        fonts: 'fonts/[name].[ext]'
    })

I did this to keep the delta minimal. Since symfony/webpack-encore#110 .enableVersioning(false) is not doing what it says (for understandable reasons), but in this case I chose to keep the filenames without a versioning hash. If you think we should introduce filenames with version hashes instead, i'll happily update this PR.

[javiereguiluz]

I'm not against replacing enableVersioning() by configureFilenames() ... as long as it's the recommended way in Webpack Encore and its docs. In this app we always do what Symfony Docs and Best Practices says. Thanks!

[bobdenotter]

PR updated, Travis is green.

[javiereguiluz]

@weaverryan quick ping: do you agree replacing enableVersioning() by configureFilenames() as a best practice in Webpack Encore? Thanks!

[weaverryan]

Hi guys!

Hmm, I don't fully agree actually. If we were to have one "default" setting that we should encourage most people to use, it is to USE enableVersioning(). This is the default setting you get when you install the encore-pack, which works because the json_manifest_path is setup for you to read the manifest.json file. So, it's free versioning support.

Configuring the filenames so that the images do not include a hash is something that I think only a minority of users want. If you're using the json_manifest_path, then the image filename is read from the manifest.json file and is transformed into the versioned filename.

So actually, I think we should go the other direction - enable versioning :).

Cheers!

[weaverryan]

(but I like all the other changes - things do need to be updated, from time to time)

[bobdenotter]

I think we should go the other direction - enable versioning :).

That's fine with me, too. PR updated accordingly.

[javiereguiluz]

Thanks Bob.