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

This reverts commit 7880533ed0546a677db8d69a660271e60abe9ab0.
Revert "[maven-release-plugin] prepare release thymeleaf-spring3-2.1.3.RELEASE"

This reverts commit 98432df812b172501fd825531486c2baf0bce2c6.
Fixed maven-release-plugin configuration for using the new project layout