v2.2.0

[skip ci] Bump version: 2.1.3 -> 2.2.0

v2.1.3

[skip ci] Bump version: 2.1.2 -> 2.1.3

v2.1.2

[skip ci] Bump version: 2.1.1 -> 2.1.2

v2.1.1

[skip ci] Bump version: 2.1.0 -> 2.1.1

v2.1.0

[skip ci] Bump version: 2.0.2 -> 2.1.0

v2.0.2

[skip ci] Bump version: 2.0.1 -> 2.0.2

v2.0.1

[skip ci] Bump version: 2.0.0 -> 2.0.1

v2.0.0

[skip ci] Bump version: 1.6.0 -> 2.0.0

V2.0.0-rc1

Ruby SDK version 2 Release candidate 1. Powered by openapi-sdkgen-3.17.0.jar and developer-cloud--api-definitions-sdk-major-release-2020-rc01/apis

Gem: https://rubygems.org/gems/ibm_watson/versions/2.0.0.rc1

See https://github.com/watson-developer-cloud/ruby-sdk/blob/2.0.0.rc1/MIGRATION-v2.md

v1.6.0

[skip ci] Bump version: 1.5.0 -> 1.6.0