Add chained methods `.resetTimeout()` and `.requestAcknowledgement()`
Add chained methods `.resetTimeout()` and `.requestAcknowledgement()`

These are both setters and getters:

* With no parameters they return the current state.
* With parameters they set the state and return a reference to the `this` (the sphere object)

hybridgroup/spheron,morganrallen/spheron