reworked boot.cmd load default env-values from /boot/bootEnv.txt and not purely rely on fixed values in our boot script.
reworked boot.cmd load default env-values from /boot/bootEnv.txt and not purely rely on fixed values in our boot script.

jens-maus/RaspberryMatic,jens-maus/RaspberryMatic,jens-maus/RaspberryMatic,jens-maus/RaspberryMatic,jens-maus/RaspberryMatic,jens-maus/RaspberryMatic