Fixed some bugs and added a new command

Fixed some bugs with serial connection and added a new command
fixed bug concerning Vent RPMs and removed KEY_StufeAuto

Fixed bug concerning VENT RPMs (calculation) and removed KEY_StufeAuto
from command list
Merge branch 'develop' of https://github.com/mannmawg/smarthome into develop
remove debug output. THX ohinckel
adding dmx_ch to conf.sh
release prep
adding more attributes for convertion of , to |
change communication to bytes