Minor fixes for MON Evaluator & Dashboarder

Change-Id: I1f2b1f786809aa84e2ee2cddbf401a03e504ff47
Signed-off-by: Gianpietro Lavado <glavado@whitestack.com>
diff --git a/osm_mon/evaluator/evaluator.py b/osm_mon/evaluator/evaluator.py
index cc9a8ad..7e86743 100644
--- a/osm_mon/evaluator/evaluator.py
+++ b/osm_mon/evaluator/evaluator.py
@@ -79,8 +79,8 @@
     def _build_alarm_response(self, alarm: Alarm, status: AlarmStatus):
         response = ResponseBuilder()
         tags = {}
-        for tag in alarm.tags:
-            tags[tag.name] = tag.value
+        for name, value in alarm.tags.items():
+            tags[name] = value
         now = time.strftime("%d-%m-%Y") + " " + time.strftime("%X")
         return response.generate_response(
             'notify_alarm',