[maven-release-plugin] copy for tag parent-2.6.0

[maven-release-plugin] copy for tag parent-2.5.0

[maven-release-plugin] copy for tag parent-2.4.0

[maven-release-plugin] copy for tag parent-2.4.0-RC1

[maven-release-plugin] copy for tag parent-2.3.0

[maven-release-plugin] copy for tag parent-2.2.0

[maven-release-plugin] copy for tag parent-2.1.0

[maven-release-plugin] copy for tag parent-2.1.0-RC1

[maven-release-plugin] copy for tag parent-2.0.0

[maven-release-plugin] copy for tag parent-2.0.0-RC2