the application destroy() method should be executed prior to release any resources

[Artem Akulshin]

The problem reported here https://bugs.launchpad.net/murano/+bug/1629804 would never occur if default behaviour was to execute destroy() or other muranopl method before releasing any resources in application to give ability to execute muranopl code before releasing any resources. The usecase for that can be releasing DNS record, windows domain record or any other external system registration like CM or whatever.