[jlrubin]

This isn't quite accurate to how we set it up.

Each step in our protocol could set a different amount of delay to close the channel. Beginning the close process does not require waiting, but finishing it does. It's actually the opposite, if you wait too long to close, you may not be able to close at all. This means that if you need to close it, and you can't reach your peers for the honest_close case, you better get to it!

Because each step can pick delay, the honest_close case allows a channel to close without any delay.