Ah, Mauro I'm very sorry, in the excitement of preparing v2.5 it seems to have slipped my mind. I've uploaded the file to:
http://www.bundysoft.com/L3DT/downloads/docs/L3DT_offline_docs.zip (5MB)
I think a hold-up was that a lot of the links within the body of the document don't work (they expect the same path structure from the webserver, and some expect PHP). I was considering how to make the links relative within the document, but I haven't worked out a solution yet. Nonetheless, I'm sure it will be very useful for those users that are sometimes without web access, and I thank your for your effort in compiling this resource.
Best regards,
Aaron.