[hibernate-dev] Search: change in BackendQueueProcessorFactory public interface.

Hi, there's another urgent reason to change BackendQueueProcessorFactory: To finish HSEARCH-268 I only need to shutdown the executors created during initialize(); there is no stop() or shutdown() method; I am not having a way to cleanup similar and opposite to initialize() my patch is working well until application shutdown: JVM will stay waiting forever; more details on JIRA soon. Sanne