[maven-release-plugin] prepare release coansys-1.1
Revert "[maven-release-plugin] prepare release coansys-1.1"

This reverts commit 6e72307841c048eb7c91ae805bf622c5d6bd6535.
Manually updating version in pom.xml files. Switching from 1.1-SNAPSHOT to 1.2-SNAPSHOT after release.