Release notes for Pairot update 1.3.4

Release notes:
- Support for KNXnet/IP tunnel connections, so you can connect with ETS to the Pairot and use it as a programming interface.
Tunnel is at default closed, you can enable it for a specific duration, or with no time-limit, on the status page of the device.
Extended frames are supported with a APDU length up to 55 bytes.
- Bugfix for some cases of combination of usernames / passwords which could give trouble with the Pairot app.
- Bugfix for some setup's of RGB lights
- Bugfix for some valve specific setup's