merge master
Merge pull request #2 from YADAMO/colorD

add black line detector
merge master
modify ColorDetector
Merge branch 'master' of https://github.com/YADAMO/First_yadamo
merge master
Merge pull request #3 from YADAMO/figurel

Figurel
commit now
Merge branch 'master' of https://github.com/YADAMO/First_yadamo into mogul
Merge branch 'master' of https://github.com/YADAMO/First_yadamo
Stepper fix
Merge branch 'mogul'