IANAL (but I work often with them) and, about (2)... It'd depend mostly on how it's presented. You could either argue along your reasoning (only sub-directories

IANAL (but I work often with them) and, about (2)... It'd depend mostly on how it's presented. You could either argue along your reasoning (only sub-directories are licensed) or say "it's right there in the 'documents' subdirectory that comes with the project, it's in another directory only to have things better organized, so all the project is licensed". Probably you'd be able to find legal precedents for both arguments. Still, I agree with you that it's good to pay attention and understand the licenses (or get legal councel if you don't) if you're planning on doing anythnig with these projects (and others too).