This seems to have been confusing people, using both xlibs and xorg, etc. - Avoided renaming local (and different) xlibs binding in gcc*. - Fixed cases where both xorg and xlibs were used. Hopefully everything still works as before.
Add myself as a maintainer. The rebuild impact is large, mostly through mesa -> {qt, gtk}.
svn path=/nixpkgs/branches/stdenv-updates/; revision=25296
