[maven-release-plugin] copy for tag 0.6.1

[maven-release-plugin] copy for tag 0.5.9

[maven-release-plugin] copy for tag 0.5.8

[maven-release-plugin] copy for tag 0.5.7

[maven-release-plugin] copy for tag 0.5.6

[maven-release-plugin] copy for tag 0.5.4

[maven-release-plugin] copy for tag 0.5.3

[maven-release-plugin] copy for tag 0.5.2

[maven-release-plugin] copy for tag 0.5.1

[maven-release-plugin] copy for tag 0.5