Change default tokenizer to HerbertTokenizerFast

config.json

@@ -20,7 +20,7 @@
   "pooler_num_fc_layers": 3,
   "pooler_size_per_head": 128,
   "pooler_type": "first_token_transform",
-  "tokenizer_class": "XLMTokenizer",
+  "tokenizer_class": "HerbertTokenizerFast",
   "type_vocab_size": 2,
   "vocab_size": 50000
 }