Delay

Creates a new unconnected delay.

In order to specify the action taken after the delay, the apply method can be used, e.g. Delay(1.0)(PrintLn("After one second")). That is equivalent to writing val d = Delay(1.0); d ---> PrintLn("After one second"); d.

'''Note:''' There is currently a subtle difference with disposal. If a runner goes into Stop state, the delay is cancelled and disposed. If a runner goes into Done state, the delay is '''not''' cancelled. This also affects Action objects. We will determine in the future whether this behavior is to be kept, or delays are always disposed upon done.