Better documentation of open hardware licenses and file availablity

[adamvoss]

The FAQ indicates the design files are licensed under a CC-BY-SA license. However, when I go to a product page I can download the schematic files but there is no indication of license or license terms there, nor have I been able to find anywhere saying which specific license the files are under and I am left not knowing which license I would need to adhere to.

[q2dg]

...and, of course, clean/clarify the .org stock