message: Add assign/unassign in canPerformAction
diff: @@ -43,6 +43,10 @@ export default class AuthorizationService {
  return entity.canCreate;
  case Action.DELETE:
  return entity.canDelete;
  + case Action.ASSIGN:
  + return entity['can' + Action.ASSIGN];
  + case Action.UNASSIGN:
  + return entity['can' + Action.UNASSIGN];
  default:
  return false;
  }
  