[maven-release-plugin] copy for tag netty-4.1.0.Beta1

[maven-release-plugin] copy for tag netty-4.0.21.Final

[maven-release-plugin] copy for tag netty-4.0.20.Final

[maven-release-plugin] copy for tag netty-3.9.2.Final

[maven-release-plugin] copy for tag netty-4.0.19.Final

[maven-release-plugin] copy for tag netty-3.9.1.Final

[maven-release-plugin] copy for tag netty-3.8.2.Final

[maven-release-plugin] copy for tag netty-3.7.1.Final

[maven-release-plugin] copy for tag netty-3.6.9.Final

[maven-release-plugin] copy for tag netty-4.0.18.Final