Merge pull request #344 from Franck-Dernoncourt/patch-1

Updating Wit API version (20160526 -> 20170307)

speech_recognition/__init__.py

@@ -1002,7 +1002,7 @@ def recognize_wit(self, audio_data, key, show_all=False):
             convert_rate=None if audio_data.sample_rate >= 8000 else 8000,  # audio samples must be at least 8 kHz
             convert_width=2  # audio samples should be 16-bit
         )
-        url = "https://api.wit.ai/speech?v=20160526"
+        url = "https://api.wit.ai/speech?v=20170307"
         request = Request(url, data=wav_data, headers={"Authorization": "Bearer {}".format(key), "Content-Type": "audio/wav"})
         try:
             response = urlopen(request, timeout=self.operation_timeout)