claashk

When trying the crossbar.io MQTT bridge example with native JSON payload mapping, I get the following error ```python Traceback (most recent call last): File "/usr/lib/python3.6/site-packages/crossbar/bridge/mqtt/wamp.py", line 343, in process_connect self._wamp_session.onMessage(msg)...

Change MQTT channel IDs to UUIDs

5

From the discussion on PR #418: It would seem beneficial to use the UUID as channel names for MQTT, too. As far as I understand, all MQTT channel names change...

I noticed, that the `toString` methods of ChannelIdentifier ([code](https://github.com/volkszaehler/vzlogger/blob/8d06176360fec9455666b41da425c14003839054/include/Reading.hpp#L115)) and StringIdentifier ([code](https://github.com/volkszaehler/vzlogger/blob/8d06176360fec9455666b41da425c14003839054/include/Reading.hpp#L96)) do not use any instance variables. Is this intendend as in it is a conscious decision not to...