f6bbd2b5f4
During the implementation of I1c8c038078bbe1a5914a92d44b3e977287294a88 we realized that the inheritance used in the notification payload classes has some drawbacks. When we need to introduce new leaf classes the content of the nova.obj_name field will change in the emited payload. This should be avoided if possible. If this cannot be avoided and the only change is the renaming then the version of the new payload shall be the same as the old payload was before the rename. If the renaming involves any other changes on the payload (e.g. adding new fields) then the version of the new payload shall be higher than the old payload was. Change-Id: Ie8c9317892f5593d473067d5dfc300a7e98795c5