Revert "Revert "StopMonitor action for IM dummy drivers""

This reverts commit 3a67b4e4c8.

src/im_mad/dummy/one_im_dummy.rb

@@ -45,6 +45,7 @@ class DummyInformationManager < OpenNebulaDriver
 
         # register actions
         register_action(:MONITOR, method("action_monitor"))
+        register_action(:STOPMONITOR, method("stop_monitor"))
     end
 
     # Execute the sensor array in the remote host
@@ -72,6 +73,10 @@ class DummyInformationManager < OpenNebulaDriver
 
         send_message("MONITOR", RESULT[:success], number, results)
     end
+
+    def stop_monitor(number, host)
+        send_message("STOPMONITOR", RESULT[:success], number, nil)
+    end
 end