[maven-release-plugin] prepare release maven-reporting-exec-1.2

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1606323 13f79535-47bb-0310-9956-ffa450edef68
[maven-release-plugin] prepare for next development iteration

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1606325 13f79535-47bb-0310-9956-ffa450edef68