- Add createPermanentConnections argument to attemptAutoEncryptingTransmission method.
- Reduce risk of misinterpreting acks by adding check for ack sender MAC.
- Reduce _encryptionRequestTimeoutMs from 500 ms to 300 ms since this should give enough (100 %) margin to the level where problems start appearing (150 ms timeout) and also save a lot of time in case of request failure.
- Improve comments.