[maven-release-plugin] prepare release clouddocs-maven-plugin-2.1.2

Change-Id: I07c818e9be71fa664425ac9b123d3d8215bcfd0a
[maven-release-plugin] prepare for next development iteration

Change-Id: I825e00864d995e326010faa58e160338f985c965
Merge "[maven-release-plugin] prepare release clouddocs-maven-plugin-2.1.2"
Merge "[maven-release-plugin] prepare for next development iteration"