You can download BlackLib and its document with described methods below.
You can download all files from github. You must run this command,
then appear BlackLib directory in your current location. You can see this with "ls -l" command. You should read README file.
Additionaly you can access source files and other documents of BlackLib project at GitHub.
You can download all files from sourceforge. You must click download button at project page, then it redirects you a download page and downloading starts automatically.