[maven-release-plugin] prepare release protocols-1.6.3

git-svn-id: https://svn.apache.org/repos/asf/james/protocols/trunk@1455146 13f79535-47bb-0310-9956-ffa450edef68
[maven-release-plugin] prepare for next development iteration

git-svn-id: https://svn.apache.org/repos/asf/james/protocols/trunk@1455150 13f79535-47bb-0310-9956-ffa450edef68