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

This reverts commit ae1583277049acc5c03ac4fd8f7129cc1040689b.
Revert "[maven-release-plugin] prepare release 0.3.2"

This reverts commit 48d9e8bbec3d1428e30482094f3c3742bb73fcc4.
Additional release-related parent pom tweaks