take dependencies out of data folder

I think it was causing problems.  Also avoided a bug in the CD section
by using relative path instead of pre-expanded %cd%
fix comment syntax, use relative paths

moving from :: to rem avoids some potential errors, using true relative
paths instead of faking it with %CD% is better for copy operations and
cleaner code
more rel paths, for /L loop to move files around

listing files and iterating through the list is much more elegant than
having six identical lines
enable delayed expansion

pretty sure this is the only variable that needs it