Bumpversion and update README

Fix test

Update to 2.4.1

Merge pull request #22 from initios/feature/ruby-2.0

Recover ruby 2.0 compatibility

Upgrade gemspec

Merge branch 'release/2.3.0'

Merge pull request #20 from initios/feature/store-payload

Feature/store payload

Update docs [skip ci]

Fix bug

Update README