circuits.core.manager: Deprecated the use of the sleep parameter/argument in Manager.start(...) and Manager.run(...) in favor of sleeping for the specified circuits.core.manager.TIMEOUT when/iif there are no tick functions to process (eg: Timer, pollers, etc)
events to process then a sleep will occur for circuits.core.TIMEOUT seconds.
circuits.core.Manager: Call self.stop right at the end of normal termination for script-like systems (eg: examples/cat.py)
circuits.core.Manager: If a KeyboardInterrupt or SystemExit exception is raised during a Tick Function, then re-raise it.