Basic raet handshake onto channel to get device id
Merge remote-tracking branch 'upstream/develop' into sam_raet_2

Conflicts:
	salt/transport/road/raet/stacking.py
	salt/transport/road/raet/test/test_stacking.py
Merge pull request #10390 from SmithSamuelM/sam_raet_3

Sam raet 3