[maven-release-plugin] prepare release maven-bundle-plugin-2.4.0

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1491288 13f79535-47bb-0310-9956-ffa450edef68
[maven-release-plugin] prepare for next development iteration

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1491290 13f79535-47bb-0310-9956-ffa450edef68