Update navtree to fix remaining sort(cmp=xx).

modules/plugin_dbui/navtree.py

@@ -113,7 +113,7 @@ class Node(object):
             di[child["text"]] = child
 
         names = list(di.keys())
-        names.sort(cmp=locale.strcoll)
+        names.sort()
 
         self.children = []
         for name in names: