Extract CSS to file in production builds

[ngotchac]

Export all the CSS to a proper file if built in production environment.
This prevents a flash of unstyled content on first load.

NB : this is not possible in dev mode since hot reloading doesn't play nice with external CSS files

[jacogr]

Excuse my ignorance - but if gets added automagically to the index.html file

[ngotchac]

@jacogr Yep it does, as the JS files actually, thanks to HtmlWebpackPlugin

[jacogr]

Cool. Will just build with --no-default-features --features ui in the morning to give it a run-through

[coveralls]

Coverage decreased (-0.5%) to 85.595% when pulling 7591dcd on ng-webpack-extract-css into 341777d on master.

[jacogr]

It seems to put the styles for everything in one, e.g.

from tokenreg.html - <link href="/styles.43f703cc4465bd69701b.css" rel="stylesheet"></head>
from index.html - <link href="/styles.43f703cc4465bd69701b.css" rel="stylesheet">

There needs to be a split between the UI, dapps and between the dapps.

Apart from that, seems to work as intended.

[ngotchac]

Ah that's right, I'll look into that

[ngotchac]

Ok this should be fixed now. Each dapp has it's own CSS file. Plus some files are now in subfolders: assets for images, styles for CSS, fonts for... fonts.

Also fixed DAPPS_URL not being used everywhere ; now we can test the builds properly

[coveralls]

Coverage decreased (-0.5%) to 85.604% when pulling ca9bff0 on ng-webpack-extract-css into 341777d on master.

[jacogr]

Still want this in?

[ngotchac]

Fixed

[jacogr]

Merge in master to just run the checks.