[maven-release-plugin] copy for tag release-2.1

[maven-release-plugin] copy for tag release-2.0

[maven-release-plugin] copy for tag release-1.11

[maven-release-plugin] copy for tag release-1.10

[maven-release-plugin] copy for tag release-1.9

[maven-release-plugin] copy for tag release-1.8

[maven-release-plugin] copy for tag release-1.7

[maven-release-plugin] copy for tag release-1.6

[maven-release-plugin] copy for tag release-1.5

[maven-release-plugin] copy for tag release-1.4