Reorder last keepalive during cleanup

Make sure the stopping of the keepalive timer and final keepalive update
are done as the last step before complete shutdown. The previous setup
could conceivably result in a node being fenced should the cleanup
operations take longer than ~45 seconds, for instance if primary node
switchover took too long or blocked, or log watchers failed to stop
quickly enough. Ensures that keepalives will continue to be run during
the shutdown process until the last possible moment.

node-daemon/pvcnoded/Daemon.py

@@ -557,17 +557,6 @@ def cleanup():
     while this_node.flush_thread is not None:
         time.sleep(0.5)
 
-    logger.out('Performing final keepalive update', state='s')
-    update_zookeeper()
-
-    # Stop keepalive thread
-    try:
-        stopKeepaliveTimer()
-    except NameError:
-        pass
-    except AttributeError:
-        pass
-
     # Stop console logging on all VMs
     logger.out('Stopping domain console watchers', state='s')
     for domain in d_domain:
@@ -592,6 +581,17 @@ def cleanup():
     except:
         pass
 
+    # Stop keepalive thread
+    try:
+        stopKeepaliveTimer()
+    except NameError:
+        pass
+    except AttributeError:
+        pass
+
+    logger.out('Performing final keepalive update', state='s')
+    update_zookeeper()
+
     # Set stop state in Zookeeper
     zkhandler.writedata(zk_conn, { '/nodes/{}/daemonstate'.format(myhostname): 'stop' })