metasync: send actions by batch of size 100

lib/metasync

@@ -361,18 +361,16 @@ def apply_action(action):
 actions.sort(key=lambda x: (x[0] == DELETE, len(x[1])))
 if args.verbose:
     print 'Actions:'
-for action in actions:
+for batch in batch_generator(actions, 100):
+    for action in batch:
+        if args.verbose:
+            print_action(action)
+        if not args.fake:
+            apply_action(action)
+        else:
+            print 'Fake, doing nothing'
     if args.verbose:
-        print_action(action)
-    if not args.fake:
-        apply_action(action)
-    else:
-        print 'Fake, doing nothing'
-
-if args.verbose:
-    print 'Waiting for completion..',
-i = len(actions)
-while i:
-    lconn.result()
-    i -= 1
-print ' done'
+        print 'Waiting for completion..',
+    for action in batch:
+        lconn.result()
+    print ' done'