[maven-release-plugin] copy for tag v2.1.0-beta.1

[maven-release-plugin] copy for tag v2.0.21

[maven-release-plugin] copy for tag v2.0.20

Set version to 2.0.19

Set version to 2.0.18

[maven-release-plugin] copy for tag v1.3.29

Set version to 2.0.17

[maven-release-plugin] copy for tag v1.3.28

Set version to 2.0.16

Set version to 2.0.15