Upgrade to elm 0.18

[bitamar]

[wjdhamilton]

Guys, do you know when this might happen? This is a really handy tool and it's a shame it won't work with 0.18

[FranklinChen]

Elm 0.19 has been out now. These migrations are really tough.

[amitaibu]

Hi folks, we no longer really use this repo - I should mark it as deprecated, as most of our effort is in https://github.com/Gizra/drupal-elm-starter

I think https://github.com/halfzebra/create-elm-app is a nice repo to look at instead.

[FranklinChen]

I've starting using create-elm-app nowadays. It's useful.