RunnableComponent.Dispose(bool,Exception) changed to standart Dispose(bool)
IRunnable is now disposable
Code cleanups, suppressed some CodeAnalysis warnings
added Safe.DispatchEvent() a legacy equivalent for '?.Invoke()'
added Safe.Dispose(IEnumerable)
added PromiseExtensions.CancellationPoint to add a cancellation point to the chain of promises
added IPromise<T> PromiseExtensions.Then<T>(this IPromise<T> that, Action<T> success) overloads
added PromiseExtensions.Error() overloads to handle a error or(and) a cancellation
Added ResetState to RunnableComponent to reset in case of failure
Added StateChanged event to IRunnable
Renamed Promise.SUCCESS -> Promise.Success
Added Promise.FromException
Renamed Bundle -> PromiseAll in PromiseExtensions
Added 'Fail' method to RunnableComponent which allows component to move from
Running to Failed state.
Added PollingComponent a timer based runnable component
More tests
Added FailPromise a thin class to wrap exceptions
Fixed error handling in SuccessPromise classes.