fixe some bug

hello !
i ve change a librairie in the lcd of duinoedu
fixe a bug and fonctionalitie in motor stepper
fixe a bug in equal polyblock
create not equalpolyblock

create a block "keyboad compare" in duinoedu  to simplifyto test "if" using a keyboard

thank you to consider

all the lib of duinoedu could be download here : http://duinoedu.com/dl/
for information "all" analog output in arduino ar between 0 and 1023.
i think that "all" analog input should be between 0 and 1023 like this map() is no need

karl THOMAS