Background: a motor that has burned out can be in one of two states: DELAYING (the delay charge has not yet fired) or SPENT (either the delay charge, if any, has fired or there was no delay charge).
The existing SimulationStatus:getActiveMotors() method returned a list of motors that were active for the stage, and which were not SPENT. The test for the warning redudantly tested for a SPENT motor, still didn't test for a DELAYING motr, and consequently set the warning.
This PR
(1) adds a boolean MotorClusterStatus:isDelaying() method, analogous to the existing state test methods
(2) modifies SimulationStatus.java:getActiveMotors() to return all the motors, not just the ones that aren't SPENT. This is to improve consistency with FlightConfiguration:getActiveMotors(), and to make for a more consistent usage between the two calls to the method.
(3) adds !isDelaying() to the test for the warning.
724cd3f5dc