BUG: Incorrect acknowledgements for some A/C protocols. (#460)
BUG: Incorrect acknowledgements for some A/C protocols. (#460)

Forgot to update this section of code for other A/C protocols, so using
a standard function to keep it up-to-date in future.

Fixes #459
markszabo/IRremoteESP8266,markszabo/IRremoteESP8266,markszabo/IRremoteESP8266,markszabo/IRremoteESP8266