realm: add some scheduler logging, complain about wakeups after shutdown
realm: add some scheduler logging, complain about wakeups after shutdown

StanfordLegion/legion,StanfordLegion/legion,chuckatkins/legion,chuckatkins/legion,sdalton1/legion,StanfordLegion/legion,StanfordLegion/legion,sdalton1/legion,chuckatkins/legion,StanfordLegion/legion,chuckatkins/legion,sdalton1/legion,sdalton1/legion,StanfordLegion/legion,chuckatkins/legion,chuckatkins/legion,StanfordLegion/legion,chuckatkins/legion,sdalton1/legion,sdalton1/legion,StanfordLegion/legion