This class is deprecated.
in 2.4. In 3.0 this will be converted to a marker interface.
ProjectPermissionEvent and GlobalPermissionEvent will be created similar to
RepositoryPermissionEvent with their subclasses specific for granting and revoking permissions
This event is fired when a user or group has a permission revoked.
(Object source, Permission permission, Project project, String affectedGroup, StashUser affectedUser)