Go back to the FIFO scheduler for now, as we don't have time to shake out the RR scheduler changeover just yet.

Make the "default" scheduler a centralized definition so that changes are easier in future.

apps/systemlib/systemlib.c

@@ -138,9 +138,8 @@ int task_spawn(const char *name, int scheduler, int priority, int stack_size, ma
 		param.sched_priority = priority;
 		sched_setscheduler(pid, scheduler, &param);
 
-		/* XXX do any other private task accounting here */
+		/* XXX do any other private task accounting here before the task starts */
 	}
-
 	sched_unlock();
 
 	return pid;