TASK: Prepare v3.0.0 release

TASK: Bump version

FEATURE: Export/expose the utils of the package

This commit exports all utils of this package e.g. import {utils} from 'plow-js'. Since you may want to create e.g. polymorph functions yourself the utils would be of good use, especially to reduce duplicate code since they are shipped / bundled anyway.

I was not 100% sure if they should be exported with the $ prefix as well but I found an separate utils export to be a bit tidier.

As always, any feedback appreciated :)

!!!TASK: Exclude .babelrc from npm release

Merge pull request #13 from grebaldi/release/1.2.1

Release 1.2.1

Merge pull request #6 from grebaldi/feature/immutable-js-support

Feature/immutable js support

FEATURE: Make migrations tolerant towards undefined subjects

TASK: Add .editorconfig

TASK: Add missing dependencies and shrinkwrap