TECU NACK-ing PGN request for PGN 60928 because no callback could handle it.

[gunicsba]

I'm trying to run the latest code on a Müller ECU and got this message:

[Warn][PR]: NACK-ing PGN request for PGN 60928 because no callback could handle it.
[Info][NM]: Control function with address 38 and NAME a0001d000cc00067 is now offline on channel 0.
[Info][NM]: Control function with address 135 and NAME a00c80000c421b07 is now offline on channel 0.
[Debug][TC Server]: Client reports that its version is 3

after which our TC crashes...

According to ISOBUS it's Address Claimed message.

[gunicsba]

Disabling the TECU in %appdata%/AOG-Taskcontroller/settings.json solves the problem but then we don't have the speed information..

[gunicsba]

Should be fixed in PR #43