Return decode_bits() code rather than the message containing the code. Brings patch into compliance with published API.

Author: lstein

adafruit_irremote.py

@@ -265,7 +265,7 @@ def decode_bits(self, pulses):  # pylint: disable=no-self-use
             raise IRNECRepeatException()
         if isinstance(result, UnparseableIRMessage):
             raise IRDecodeException("10 pulses minimum")
-        return result
+        return result.code
 
     def _read_pulses_non_blocking(
         self, input_pulses, max_pulse=10000, pulse_window=0.10