md2k7-asyouwish license is a very permissive license. It could be added to MISC_FREE group.
The text of the license is:
You are free to do with these icons as you wish, including selling, copying, modifying etc.
+ 16 Sep 2012; Ulrich Müller <email@example.com> license_groups:
+ Add md2k7-asyouwish to MISC-FREE license group, bug 435004.
Thanks for reporting.