[themes] Tango iconset: Default for drupal, is NOT GPL.

[Rowan Kerr]

Bèr Kessels wrote:
> I only realised this today, but our guidelines speak about using tango as 
> default iconset. We abide these rules very well, in the contribs the mayority 
> if icons are indeed tango icons.
> 
> But they are not GPL, nor can they be distributed as such.

Why would you use GPL for _content_?

gnu.org does seem to dislike the Creative Commons licenses though, 
although I'm not sure what part of the "Attribution Share-alike" they 
disagree with .. probably the requirement of attribution?
http://www.gnu.org/philosophy/license-list.html

-Rowan