modify
Merge remote-tracking branch 'rainer/master'

Conflicts:
	software/ethernet_board/user_cmd.cpp
fixed checksum always wrong error for humidity eval
Merge remote-tracking branch 'wenwen/master'
?
Merge remote-tracking branch 'rainer/master'
moved checksum to util
i2c checksum evaluated
start define macro
Merge remote-tracking branch 'rainer/master'
Merge remote-tracking branch 'wenwen/master'
fixec temp checksum (now also containing padding)
ka
Merge remote-tracking branch 'rainer/master'
many images :)
report schematic images
Merge remote-tracking branch 'rainer/master'
report: bib
Merge remote-tracking branch 'rainer/master'
zac implementation started