update node version

Merge pull request #34 from paperhive/feature/discrimiated-union

add discriminatedUnion()

Improve toThrow() docs

provide token with checkout

Use different token for releasing

Merge pull request #31 from paperhive/feature/compose

Add pipe()

Merge pull request #29 from paperhive/feature/either-pattern

Rewrite with pure functional Either<Error, Result> pattern

2.1.1

2.1.0

2.0.3