To be fair, I could download the source code without leaving any e-mail address.
And, indeed, every script says that it is under GPL.

However, one thing that is definitely missing is documentation. By looking at the code itself you can't get the feeling of how things are organized; and the demo can't tell you what's under the hood.
So, I would add some (a lot!) of POD to those scripts.

Finally, one last note. No time to have a look at your code, but, just a shot in the dark. Running:

grep -r "use strict" *
[download]

from the root of your snapshot, I get an empty list, meaning that none of your scripts are using it.
The same command inquiring for "-w" and "use CGI" returns a significant list.
gmax