Update node collection handlers for renamed

Rename support will provide a map of old to new name.  Have the
existing node collection watchers accept a new argument.

confluent_server/confluent/config/configmanager.py

@@ -290,7 +290,7 @@ def logException():
 
 def _do_add_watcher(watcher, added, configmanager):
     try:
-        watcher(added=added, deleting=[], configmanager=configmanager)
+        watcher(added=added, deleting=(), renamed=(), configmanager=configmanager)
     except Exception:
         logException()
 
@@ -1705,7 +1705,7 @@ class ConfigManager(object):
     def _true_del_nodes(self, nodes):
         if self.tenant in self._nodecollwatchers:
             for watcher in self._nodecollwatchers[self.tenant].itervalues():
-                watcher(added=[], deleting=nodes, configmanager=self)
+                watcher(added=(), deleting=nodes, renamed=(), configmanager=self)
         changeset = {}
         for node in nodes:
             # set a reserved attribute for the sake of the change notification

confluent_server/confluent/consoleserver.py

@@ -621,7 +621,7 @@ def disconnect_node(node, configmanager):
         del _handled_consoles[consk]
 
 
-def _nodechange(added, deleting, configmanager):
+def _nodechange(added, deleting, renamed, configmanager, renamed=()):
     for node in added:
         connect_node(node, configmanager)
     for node in deleting:

confluent_server/confluent/discovery/core.py

@@ -1129,7 +1129,7 @@ def _handle_nodelist_change(configmanager):
         nodeaddhandler = None
 
 
-def newnodes(added, deleting, configmanager):
+def newnodes(added, deleting, renamed, configmanager):
     global attribwatcher
     global needaddhandled
     global nodeaddhandler