Scheduler before/after run ... restore saving retention on scheduling…

… stop

alignak/daemons/schedulerdaemon.py

@@ -266,6 +266,7 @@ def do_loop_turn(self):
             # If scheduling is not yet enabled, enable scheduling
             if not self.sched.must_schedule:
                 self.sched.start_scheduling()
+                self.sched.before_run()
             self.sched.run()
         else:
             logger.warning("#%d - No monitoring configuration to scheduler...",
@@ -546,6 +547,9 @@ def main(self):
             # Now the main loop
             self.do_main_loop()
 
+            # On main loop exit, call the scheduler after run process
+            self.sched.after_run()
+
             self.request_stop()
         except Exception:
             self.exit_on_exception(traceback.format_exc())