Merge remote-tracking branch 'origin/master' into staging.

Conflicts:
	pkgs/desktops/e18/enlightenment.nix

pkgs/applications/version-management/git-and-tools/qgit/default.nix

@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "qgit-2.5";
   meta =
   {
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
     homepage = "http://libre.tibirna.org/projects/qgit/wiki/QGit";
     description = "Graphical front-end to Git";
     inherit (qt.meta) platforms;

pkgs/applications/version-management/git-and-tools/qgit/qgit-git.nix

@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "qgit-git";
   meta =
   {
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
     homepage = "http://digilander.libero.it/mcostalba/";
     description = "Graphical front-end to Git";
   };

pkgs/applications/version-management/git-and-tools/topgit/default.nix

@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = "https://github.com/greenrd/topgit";
     description = "TopGit manages large amount of interdependent topic branches";
-    license = "GPLv2";
+    license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
     maintainers = with stdenv.lib.maintainers; [ marcweber ludo simons ];
   };