Merge branch 'advanced-logging-shutdown' into 'master'

More logging for shutdown

This should give us enough information to debug why the shutdown would sometimes hit the celery task time limit without libvirt getting the shutdown request.

See merge request !10

vmdriver.py

@@ -210,9 +210,12 @@ class shutdown(AbortableTask):
     def run(self, args):
         from time import sleep
         name, = args
+        logging.info("Shutdown started for vm: %s", name)
         try:
             domain = lookupByName(name)
+            logging.info("%s domain found in shutdown", name)
             domain.shutdown()
+            logging.info("Domain shutdown called for vm: %s", name)
             while True:
                 try:
                     Connection.get().lookupByName(name)