The following icons are from the Apache httpd server icon set:

binary.png
c.png
dir.png
generic.png
image.png
removed.png
script.png
untracked.png

See the COPYING file for license details.


The following files are from the Tango icon set:

add.svg
edit-clear.svg
edit-copy.svg
edit-select-all.svg
open.svg
options.svg
remove.svg
undo.svg
view-refresh.svg
zoom-in.png
zoom-out.png

http://creativecommons.org/licenses/publicdomain/


The rest of the icons are original works,
copyright (c) 2007-2012 David Aguilar and contributors
