On http://layout.jquery-dev.com/ under "Contact information" I see:
Review issues and requests on the issues page page
That link - to http://layout.jquery-dev.com/issues.html - should be changed to https://github.com/allpro/layout/issues, right?
Also, the http://layout.jquery-dev.com/issues.html page is not entirely dead, but opens a frame with src="http://archive.plugins.jquery.com/project/issues/Layout#jq-content" and that gets a "Server not Found". Perhaps http://layout.jquery-dev.com/issues.html should also be changed to point to https://github.com/allpro/layout/issues.