Added task schedulers from ParallelExtensionsExtras from Samples for Parallel Programming (http://code.msdn.microsoft.com/ParExtSamples): LimitedConcurrencyTaskScheduler, OrderedTaskScheduler (limited to one thread LimitedConcurrencyTaskScheduler), ApartmentTaskScheduler (based on StaTaskScheduler), ThreadTaskScheduler (limited to one thread ApartmentTaskScheduler)