[maven-release-plugin] prepare release maven-shared-utils-0.3

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1450897 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@1450900 13f79535-47bb-0310-9956-ffa450edef68