Revert "[maven-release-plugin] prepare for next development iteration"

This reverts commit 832dc594e7666f1d402334f8015ce29917d9c888.
Revert "[maven-release-plugin] prepare release v1.0.0-rc11"

This reverts commit 2f1dc868e5714882cf40d2633fb66772baf34789.
Updated CHANGES.txt