Added strategy ID + Action Plan syncing

In this changeset, I implemented the logic which cancels
any audit or action plan whose goal has been re-synced
(upon restarting the Decision Engine).

Partially Implements: blueprint efficacy-indicator

Change-Id: I95d2739eb552d4a7a02c822b11844591008f648e

watcher/api/controllers/v1/audit.py

@@ -198,7 +198,7 @@ class Audit(base.APIBase):
             else:
                 strategy = objects.Strategy.get_by_name(
                     pecan.request.context, value)
-        except exception.GoalNotFound:
+        except exception.StrategyNotFound:
             pass
         if strategy:
             self.strategy_id = strategy.id