Review fixes.
Review fixes.

Polidea/RxBluetoothKit,proxyco/RxBluetoothKit,Polidea/RxBluetoothKit,proxyco/RxBluetoothKit,Fitbit/RxBluetoothKit,Fitbit/RxBluetoothKit,Polidea/RxBluetoothKit,Fitbit/RxBluetoothKit