Bump version to v4.2.0

Bump version to v4.1.0

Fix typo

3.5.0-beta.0

Bump version to v3.4.0

3.4.0-beta.0

Merge pull request #33 from railsware/release-v3.3.0

Bump version to v3.3.0

3.3.0-beta.1

3.3.0-beta.0

3.2.0-beta.3