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

This reverts commit e6c4490c07aac451c690cfca7385b510338d679b.
Revert "[maven-release-plugin] prepare release appverse-web-masterpom-1.4-RELEASE_8"

This reverts commit 1e10fe3a1ae0171135b98172877cb9aad95c6314.