[maven-release-plugin] prepare release maven-ear-plugin-2.3.1
[maven-release-plugin] prepare release maven-ear-plugin-2.3.1

git-svn-id: 6038db50b076e48c7926ed71fd94f8e91be2fbc9@565496 13f79535-47bb-0310-9956-ffa450edef68

khmarbaise/maven-plugins,khmarbaise/maven-plugins,khmarbaise/maven-plugins