[maven-release-plugin] copy for tag v2.8.6 

[maven-release-plugin] copy for tag v2.8.5 

[maven-release-plugin] copy for tag v2.8.4 

[maven-release-plugin] copy for tag v2.8.3 

[maven-release-plugin] copy for tag v2.8.2 

[maven-release-plugin] copy for tag v2.8.1 

[maven-release-plugin] copy for tag v2.8.0 

[maven-release-plugin] copy for tag v2.7.0 

[maven-release-plugin] copy for tag v2.7.0-RC1 

[maven-release-plugin] copy for tag v2.6.0