Updating BaseHelper and tests to include new collection decorator
Fixing misleading phpdoc in DomainObjectDecoratorInterface
Updating user ApiController::fetchAction() so that it uses the decorator
Adding helper for fetching a DomainObjectCollectionDecorator in AbstractUnitTest
Updating user ApiController::listAction() to utilise the object collection decorator
Updating project ApiController methods to use the object collection decorator
Updating preference ApiController::listAction() to use the object collection decorator
Updating notification ApiController::listAction() to use the object collection decorator