CVE-2012-2763 and three others. If we really need to resurrect it,
I think I saw debian could have patches for these somewhere.
Also add linux platforms for 2.8.
- rename package from gimp_2_8_0 to gimp_2_8 as discussed on mailing list[1]
- remove babl_0_1_10 and gegl_0_2_0 and use them as default versions
[1] http://article.gmane.org/gmane.linux.distributions.nixos/8708
svn path=/nixpkgs/trunk/; revision=34444
