Revert "Turning the destroy step into a script rule"

This reverts commit 571f3988d1350d6e09a0cbe7de1df2d24d1633ba.
Revert "Revert "Turning the destroy step into a script rule""

This reverts commit d03cd8b2cb61b6aad4be691092247e602eaab051.
major update of the rules demo plugin
finalising the demo plugin
Merge branch 'master' of https://github.com/xebialabs/community-plugins