mrom_no_observer_impl
=============================

An observer for layers that use strength\_patterns.  Output is based on the 
variable timeout rule of MROM.  If the layer's current\_time is before 
`check_time`,
return "?".  Otherwise, calculate the summed activity at `check_time` and compare to
`check_threshold`.  If the summed activity is greater than `check_threshold`, the
timeout is `late_timeout`, otherwise `early_timeout`.  If the current time is
equal to or greater than the timeout, return "no", else return "?".

Parameter
---------

Is a parameter\_client:
	parameter	default\_value
	early_timeout	0
	late_timeout	0
	check_time	0
	check_threshold	0