Fix Webpack build with Bulma v0.6.0

[dhargitai]

No description provided.

[MichMich]

Please merge this PR.

[codeasashu]

Please merge the PR. Many are affected.

[adrienbrunet]

It's quite clear all the vue-bulma modules intend to be compatible with vue 2 and bulma 0.3. Bulma is now at 0.6.1 and the migration is pretty straight forward for most modules (given almost all of them have been given pull requests to help the migration). Is any work planned in that sense or should we fork it all ? I'm beginning to play and use vue + bulma and I already had to fork three of your repos. Do you need help in any way ? Thanks for all your good work !

[samuelterra22]

please merge!

[nonsocode]

Please merge this

[mblarsen]

Could this be merged @fundon @luventa @netpi @nfer

References #7

[flufy3d]

pls ,merge

[balping]

@flufy3d

Has been merged a while ago

[soaresdude]

The version on npm is still @import '~bulma/sass/utilities/variables';

[balping]

You can reference the master branch in packages.json to get this change: https://docs.npmjs.com/files/package.json#git-urls-as-dependencies