added debugging output for scheduler

scheduler.py

@@ -16,11 +16,14 @@ def sched_func(delay, priority=0, firstdelay=None, args=[], kargs={}):
 		def sched_wrapper():
 			with app.test_request_context():
 				try:
+					if config.get('DEBUG', False):
+						print("Scheduler: started {} (frequency 1/{}s)".format(func.__name__, delay))
 					func(*args, **kargs)
 				except Exception:
 					traceback.print_exc()
 			scheduler.enter(delay, priority, sched_wrapper)
 		scheduler.enter(firstdelay, priority, sched_wrapper)
+		print("Scheduler: registered {} (frequency 1/{}s, start delay: {}s)".format(func.__name__, delay, firstdelay))
 		return func
 	return wrapper