Revert "Revert "gnome3_18: add libgee_1""

This reverts commit a0023674807b9798850a7198073965a5edf8293a.

pkgs/desktops/gnome-3/3.18/default.nix

···
   libcroco = callPackage ./core/libcroco {};
 
   libgee = callPackage ./core/libgee { };
+  libgee_1 = callPackage ./core/libgee/libgee-1.nix { };
 
   libgdata = callPackage ./core/libgdata { };