Treat the gimp-core-pixbufs and gimp-icon-pixbufs resources like we
changed the cursor resources before, and clean out a lot of cruft from
icons/ (there is no need to generate stuff in all icon themes when we
include only one fallback icon from one theme).
Images originally created by Jakub Steiner and Barbara Muraus as the
"Art Libre" icon set.
The contributor jEsuSdA later worked on it.
It will now be available in the new icon theme selection through
preferences.
Many icons/size are still missing but this first commit makes a start
for complementary work.
Michael Natterer