Scan Frequency
Trying to learn a new RF powerpoint but when learning the code, it seems to crash homebridge

> May 02 15:34:30 raspberrypi homebridge[2282]: [5/2/2017, 3:34:30 PM] [Broadlink RM] Scan RF (scanning)
May 02 15:34:30 raspberrypi homebridge[2282]: [5/2/2017, 3:34:30 PM] [Broadlink RM] [Hold down the button that sends the RF frequency]
May 02 15:34:32 raspberrypi homebridge[2282]: [5/2/2017, 3:34:32 PM] [Broadlink RM] Scan RF (found frequency - 1 of 2)
May 02 15:34:32 raspberrypi homebridge[2282]: [5/2/2017, 3:34:32 PM] [Broadlink RM] [Keep holding that button!]
May 02 15:34:33 raspberrypi homebridge[2282]: [5/2/2017, 3:34:33 PM] [Broadlink RM] Scan RF (found frequency - 2 of 2)
May 02 15:34:33 raspberrypi homebridge[2282]: [5/2/2017, 3:34:33 PM] [Broadlink RM] [Press the RF button multiple times with a pause between them]
May 02 15:34:51 raspberrypi homebridge[2282]: [5/2/2017, 3:34:51 PM] [Broadlink RM] Scan RF (stopped - 20s timeout)
May 02 15:34:51 raspberrypi homebridge[2282]: /usr/local/lib/node_modules/homebridge-broadlink-rm/helpers/learnRFData.js:19
May 02 15:34:51 raspberrypi homebridge[2282]: closeClient();
May 02 15:34:51 raspberrypi homebridge[2282]: ^
May 02 15:34:51 raspberrypi homebridge[2282]: TypeError: closeClient is not a function
May 02 15:34:51 raspberrypi homebridge[2282]: at Timeout.setTimeout [as _onTimeout] (/usr/local/lib/node_modules/homebridge-broadlink-rm/helpers/learnRFData.js:19:7)
May 02 15:34:51 raspberrypi homebridge[2282]: at ontimeout (timers.js:386:14)
May 02 15:34:51 raspberrypi homebridge[2282]: at tryOnTimeout (timers.js:250:5)
May 02 15:34:51 raspberrypi homebridge[2282]: at Timer.listOnTimeout (timers.js:214:5)
May 02 15:34:51 raspberrypi systemd[1]: homebridge.service: main process exited, code=exited, status=1/FAILURE
May 02 15:34:51 raspberrypi systemd[1]: Unit homebridge.service entered failed state.
May 02 15:35:01 raspberrypi systemd[1]: homebridge.service holdoff time over, scheduling restart.
May 02 15:35:01 raspberrypi systemd[1]: Stopping Node.js HomeKit Server...
May 02 15:35:01 raspberrypi systemd[1]: Starting Node.js HomeKit Server...
