OmniThreadLibrary 1.04a

This minor release was released mostly because of exception handling problems when thread pool was used in version 1.04. If you’re using thread pool feature and have OTL 1.04 installed, I’d strongly urge you to upgrade. Besides code fix I sneaked in a small API upgrade. IOmniTask interface now defines methods RegisterWaitObject/UnregisterWaitObject which the task can use to wait on any waitable object when using TOmniWorker approach (no main thread loop). There’s also a new demo application 31_WaitableObjects which demonstrates the use of this feature.